SCIENTIFIC ABSTRACT MELIK-ASLANOVA, P. S. - MELIK-GAYKAZYAN, I. YA.

• Document Type: CREST
• Collection: Scientific Abstracts
• Document Number (FOIA) /ESDN (CREST): CIA-RDP86-00513R001033410006-3
• Release Decision: RIF
• Original Classification: S
• Document Page Count: 100
• Document Creation Date: November 2, 2016
• Document Release Date: June 20, 2000
• Sequence Number: 6
• Publication Date: December 31, 1967
• Content Type: SCIENTIFIC ABSTRACT

1'. S.
7.1ST IY-Af7LP.T.TTIA, S. - 'Tatprial~,.- on the of
c;5,
-erllaijan -tal-P 'Ied
Ilusellas in ?LajiE,,.iant New Gro-~ths."
(--issortations for Def;reP of' Cland~.datc of "'ed-iCtil 3ci.ef,C;~F)
so: Knizlb-iaya Leto,,ds' No. 26, Juno 1955, '.DrcO"

XCLIX-ASLAMAO P., ,,.kpnd,medenauk,, ROZIN, D.L.
Rare anise of 'primary planocellular 'Ice-ratosic cpancer of the renal velvis.
Azerb.med.shur. n0.2:99-100 7 158 (MBU 11:12)
1. Tz luatituta rentganologit i radiologli Kininterst-7a zdravookhrone-
niya AzerbWd7,hanskqy SSR (diroktor - dots* M.H. Alikiishlbekov)
(KIDBETS-CANOM)

KILITP-AMROVA, F.S., kand.md,nauk; ADIMMU-POLMORVA, G., land.sed.nauk
Came of primary cancer of the Nelbosdan glands. Aterb.zed.zbtw.
no.2:68-69 7 160. (NnA 13:5)
1. Is Aserbaydxhanskogo nauchno-Insledovatel'skogo Instituta
oftallsologit (direktor - N.M. Ifendlyev).
(MBIBOWUN GLAMS-CANCIR)

I.S. ' d,,nauk*
Tumouraft diseases of the wle aocording. to data of the Amr-
baijan Ophtha3mological ScientIfte Research rnafttzW frm
1946 to 1956* Azarb, nod, zluwo zw.U40-44 J& 162.
(IURA 160)
L U'Axerbayfthanskago matichno-isaledovatell6koko instituta
s3ftallmologii.(direktor 10H. IfenclL%jev).'
(AMWJAN-SM-TUMORS)

I
;t~ 1'7 p . 'LlUOVA, -, f NAMES!!, Z..,'-
." , _Dl~ y K,A,; MELIK~U P. ~ ~ a
Treatment of trachf-aa with bi aqc i alb-7 per-forating ths con',ritiva
J 41
of the eVlids. Azerb. med. zhur. 41 rx,,5159--f4 ',tr 1640
fmjp~, 283-10)

iciaK-BABAKHMIOV, G.J.
Tuberculama of the lungsa Froblo tub. 38 no. 5:1CO-W2 160.
(MW 14:1)
(TUB:-;RqLMIS)

MaK-BABAMIABOV, G.T.
Numell's tra=atic spondylitis complicated by generalized any"
loidosis. Terap.arkh. 3/, no.3:IM-122 162. (MIn 15:3)
1e Iz kafedry fekulltetakoy terapii (zave - dotsent G.V. Melik-
Babakhanov) Altayskogo, meditsinskogo institua.
(VERTEBRAE-WMDS AND IFJURMS) (AHrLDIDOSIS)

NEUK-BABAKRANGV, G.V.
Correlati9n netwen protein and lipoprotein frac-uion changes
in.hypertensi6n and therosclerosis and factors of hyper-
tension and hypercholesteremia: problem of the unity- of pa-
thogenesis of hypertension and atherosclerosis. Kardiolo.&i1a
3 no.3258-W MY-Je'63- (KMA 16 -.9)
1. Iz kafedry fakullt~tskoy terapii (zav. - dotsent, G.V. Vblik-
Babakhanov). "jokogo meditsinskogo instituta.
(BLOW FROFTERIS) (HYP74TENSION)
(AjaOSCLEROSIS) (OkU LFURROL)

k=, -BAGOASAROV, . G. A.
Diseases of the kidnes-
Dissertation: "Fathogensis -and Clinical, and Medical- Treatment of Chondroperichcmdritis
of the Ribs of the Traumatic Urigin." Cand Med Sci, Azerbaydzhan State 4dical Inst,
11 Uarch 54 (Bakinskiy- Rabothiny, Baku,, 2 i4ar 54)-
SO: SLU 213, 20 Sep 54

MAMEDOY, Z-M., Prof. ; HIM-BAGDASM". G.M.. kand. med. naaks, dotsent
Report of the Azerbaijan Scientific Medical Society of
Surgeons for 1964. Amrb. =ed. s1mr. 42 no. 702-9/4 J1 165
(MIRA l9d)
1. Predsedatel2 pravleniya Azerbaydzhanskogo naucbno-meditsinskogo
obehahestm khirurgov (for Namedov). 2. Uchenyy sekretart Azer-
baydzhanskogo muchno-meditainskogo obshchastwa khirurgor (for
Melik-Bagdaearov).

MELIK-UMASAROVI S. VA.
melik-bagdairov, S. 14. "Factorl procossing and soase of old asphalt," Gor. khoz-vo
Moskvy, 1949, HO. 3, P. 37-38.
BO: U-3736.9 21 Mv 53, (Letopis 'Zhurnal Inykh Statey, no. A, 1)49).

MELIK-BAGDASAROV, S. 91. 5M, L.B,, red,; VARGAR07A, A.24, re4.
takhn.red.
[Colored pavements for park walk*] 129votays pakrytlla parkovykb
doroxhok. Nonkra, Izd-vo X-va kommun.khoz.RS753, 1962, 50 po
(NM 15-12)
(Sidewalks)

K&LIK-UKUAKUN, I.Ya.., kandidat teklmicheeldich nauk.
Desigming bridges with the aid of a current flow plan. Trudy
Th."LIZHT no.22:8&117 150. (Km q.. U)
(Bridge construction) (Hydraulles)

MELIK-BAKHTAlaAN, I.Ya.
-.1-- --- ----- --.---_-- -
Classification of river regulation and shore protection
structures. Trudy GPI (Gruz.] no.7:109-1-13 163.
(MIRA 18:6)

pI t~ i /A~- 8 d 4W 11W)/A?&N' ~-- (-51-
WNIXYAM. G.G#; IOLM13ARKHODAROV 1. 6&~
. - . 1 5141., 1-
Stractural plan of the sontheastern part of the northern edge of the
lower Kixra Lowland. Azerb. neft.'khoz. 36 no.5:4-7 My 157.
(Irura Lowland-Toology, Structural) (KIRA 10:11)

toy"-13AjL1I3IMRGV, IFeBe; TUMIKW9 G.Gs
Tootonics of the Alyaty upland. asol. nef ti 2 no.n:28-3o N 158.
(KM M-22)
lAinisterafto neftyanoy proWshlenpostl AserSSR.
(Xobystan--Geol*og7',.Stractural).

MLIK-BAfLKHUDA.N
1j"; TUMMAN, C*.G.
Main fault of the Alyaty Upland and its effect on the distribution
of oil and gas. Geol.nefti i gaza 6 no-5:37-39 *Z 162.
(MRA 15:5)
1. ArVanskoye geologichaskoye upravleniye L Ob"yedineniye
Axer~Aydzhanskoy neftyanoy promyshlennosti.
(Kabystan-Petroleum geoloig.) (Kobystan--Gas, Natural-Geology)

GGRINDVI L*Fv; HELIK-BARMODAROV, TA,
I~heory f -- th dity of an'Imperfect Fend gas.' -Zhur.
0 ' a- superflul -
ekspi i tears fiz;,40 no.5:3452-3458 Ky 161. JKIRA 14:7)
Is -Institut fis.icheakikh problen.AN SSSR.
Vold -~eory-).

ARIJTYTJNHAN, V.M.; VARTAMAN, Yu.L.; CTIUBMAII, E.V.,- SHAMUMAN,
V.A.;:A14ATUNI,, A.TS.; DURBASIUAIT, V.A.; HELIK-BARKHUDAROV
Y,,K-.; TXVIKrAN R.V.; BMEMTSKIX,, V,B,,Tr-of., red.'s
SHTIBEN, R.A., red. izd-va; KAPLAffM, M.A., tekhn. iwd.
(Problems in the theor7 of strong and weak interactions of
elementary particles; lectures] Voprosy teorii sillnykh i
slabykh waimodeistvii elementarEykh chastits; lektsii. Pod
obshcbei red. V.B.Berestetskogo. Erevan, Izd-vo Akad. nauk
Armianskoi DDR, 1962. 190 p. (MM 15:5)
1. Akademiya nauk Armyanskoy SSR. Fizicheskiy institut.
(Nuclear reactions)

GORIKOV# L.P.; MMU-SARKHUDAROV, T.K.
Hicrosco.P46 derivation of Ginzburg-Landau equations for an
anisotropic superconductor. Zhur.'eksp. -i teor. fiz. 45
no.5:1493-1498 M 163. (MIRA 17:1)
1. Institut fizicheskikh problem AN SSSR.

vA
ACCESSION NR: AP4042404 S/0056/64/047/001/0311/0324
AUTHOA-. Nelik-Barkhudarov, T. K.
TITLE: Lower critical field and nonlinear effects in the electro-
dynamics of superconducting alloys
SOURCE: Zh. eksper. i teor. fiz.. v. 47, no. 1e 1964, 311-324
JiTOPIC TAGS: superconductivity, critical magnetic field, penetration
depth, alloy., superconducting alloy
,'ABSTRACT: The lower critical field, defined as the field at which a
;magnetic field begins to penetrate into a superconductor, is deter-
!-mined for strongly contaminated alloys over the entire temperature
range. Unlike the result of A. A. Abrikosov (ZhETF v. 32., 1442,
1957), the expression obtained here for the critical field contains
a temperature dependence, although it is Identical with the former in all
other respects. The formula is valid for the entire range of tem-
/2

iACCESSION NR: AP4042404
4
peratures. In addition, the author calculates the corrections'to
:the depth of penetration of a weak magnetic field into the supercon-
Iducting alloy. Orig. art. has: 5 figures and 59 formulas.
I
'ASSOCIATION: Fizicbeskiy institut GKAE, Yerevan (Physics Institute
GKAE)
~SUBMITTED.- 03Feb64 ATD PRESS: 3083 ENCL: 00
SUB CODE: EM# SS
2/2
UR REF SOVt 004 OTHER: 004

12

O-T, - roe On-YAs.as)

TOLSTIKUN, N.I.; WLIK-UVTYAMp L.S.
Life and work of N.F. Pogrebov; on the 100th anniversary of his
birth. Informabor.'VSECEI no.48:25-50 161. (MIRA 15:7)
(Pogrebov, Nikolai Feodorovich, 1860-1942)
(Geology)

Me Lj*k _bffvf~qjvR.L
USSR/Blectrouics - Semiconductor Devices and Photocells., H-8
Abet Journal: Referat Zhur - FizikaY No 12, 1956, 35212
Author: Sominakiy, 14. S., Makhov, A. F., Melik-Davtyap-R. L.
Institutiont None
Title: On the Effect of Electrodes on the Rectifying Proper-ties of a
Crystal Detector.
Original
Periodical: Ob. statey Ieningr. in-ta. tochnoy m;~-khan. i GPt~~J, 1955, NC 18,
142-153
Abstract: Detailed investigation of the effect of pressure, matertal pe,
and dimensions of the upper electrodes, and also of the effd of
the method of preparation of the lower,blectrode on the rect-ifytng
properties of a Germanium detector. The optimum values of the
above electrode parameters are established. Bibliography, 9 titles,
Card 1/1

BOGUSTAVSXIT, A,Ya.,--JWR&aMju-v-jL 1P.S.
Case of IntramItal x-ray dia0esis of cancer of the horizontal
portion of the lower segment of the duademm. Test.rent.1 rad.
35 no.1:60-61 Ta-Ir 160. (KM 13 -.6)
(BUODIOM neopl. )

BEIZAKOVs,ye.p.# otvO red.; GINZBURGj N.Ya., otv. red.; KRICHEVSKIY,
Ya,K*, oft. red.; MEM-GAYUMV, VII. otv. red.; TIKIfONOVA,
,j
Ye*Dol M.; SELi0ft-,-F.I., taklm. red.
[RolUng mills]Stany prokatnye. Moskva,, TSINTImash., 1960. 137 p.
(KM 15 -. 32)
1. Russia (1923- U.S. S.R, )Gosudarstvennyy nauchno-tekbnicheskiy
komitet.
(Rol-Ung mills)

S/194/61/000/012/048/097
D256/D303
AUTHOR: Melik-Gaykazov, V. I.
TITLB; Acceleration-recording apparature for load-lifting and
transporting machines
PERIODICAL: Referativnyy zhurnal, Avtomatika i radioelektronika,
no. 12, 1961, 30, abstract 12V254 (Tr. Vaes. n.-i in-
ta pod"yomno-tranap, mashinostr., 1960, no. 9, 50-56)
TEXT; A number of instruments used by research organisations was
considered in order to choose a most suitable one for experimentally
.determining accelerations of the moving parts of load-!.lifting maoh-
ines at various conditions of operation. A resistance stress wire
gauge instrument developed by the NIB-Vagonostroyeniye (Railway
CD
Coachbuilding Research Bureau) was found most suitable. The range of
measurements of the instrument is from 0 to 10 g at frequencies from
1 to 100 c/s. The elements are made of 200 ohm, 22 mm long constan-
tan wire stuck to a strip of varnished cambric. The re8ults of the
static and dynamic calibrations are presented and a description is
Card 1/2

6/194/61/000/012/048/097
Acceleration-recording 4.. D256/D303
given of the testing arrangement construction, the amplifier and
csoillograph used and ways of overcoming the parasitic vibrations.
There are 8 figures and 4 references. Z Abstractor's note: Complete
Iranslation.1
Card 2/2

54
gall.
tol-
To
IR v
It,I
0 ju
: b
.4
full 11
of
10
2280V OsUao 350 44.2,
g2 as saeol 4.
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01,
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legivalwan
IT I.
0
" *'a
r

___j9M~-GATUZffA".1.* KUROUCE19 A.D.
Determination of the optimin coefficient of expansion In a two-
stage switching circuit which to used In link selenting operation.
Probl. pared,, Inform,, no*4:27-34 159. (HrM 13:7)
(Telephoneq Automatic) (Switching theory)

HELIK-G.~.MZGTA. N.1.; KHAMMVICH. A.D.
Study of the structural paranaters of group hunting units.
Probl.pared.iaform. ao.6:57-63 160. (HIRAL 13:11)
(Telephone, Automatic)

Mir.-MmOVAS I.I.
Stress distrilmtIon. In tuVbOdrill Parts, left* khox,
38 no.6141-45 Jo 160. (191RA 13:7)
(Tqwbodrille) (Strains and stresses)

NRI I
AUMOR,. Kollk-Gaykazova, E. I.
REF SOURCE: Tr. uchebn. in-tov evyazi. H-vo svyati SSSR, vyp; 23, 1964, 150-159
TITIZi '14ases in an accessible besm tran=itting an Erlang current
SOURCE: Ref. zh. Radiotekhnika L elektrosvyaz', Alm. 9V73
TOPIC TAGS: multiple beam transmission, telephone systes, signal transdission, voice
communication
TRANSLATION: The probability of losses attached to the maintenance of a c=4nt is
determined by instruments using an accessible beam. The current is staitiWt-ically de-
termined by Erlang's k-distribution. The duration of service is assumed to be distri-
buted exponentially. The extent of the deviation of the losses attached to the mainte-
nance of Poisson and Erlang currents is investigated. The results of the computations
of losses are shown for various values of the current parameter k and various capaci-
tances of the beam. A graph of the dependence ok losses upon the current intensity
for k=1, 2, 4, and 5 is shown using three auxiliary instruments. Losses in k for in-
tensities of 0.5 and 1 Erlang using three auxiliary Instruments are also graphed. 3
figures, 3 tables, 2titles. A. B.
SUB CODE: 09/ SUBM DATE: none
UDC,. 621.395.1
Card 1/1 V

TMIK-GAYKATL~Tj 1. Ya.
,lonaracte r-I c ties of the Structure of the Earth's Core on the I-Ela-liz of the inter-preta-
I
I -
tion of Seionic Voscrrations." Sub 13 ilm 51, C'emmysIcs Inst, ,'cz-.d- Sci USSP
Dissertations presented far science ancl, enr:j.ne-r4.n(-7 decrecs in "OZ3co" c. 11)51.
SO- sm . ',!a. VO., 9 55.

Some structural features of the earth's core based on the interpre-
tation of seismic observations., Trudy Goofix.inst. no.22S59-94 154.
(Barth--Internal struct=e)(Seismology- (MIRA 82.4)
Observations)

60-55-26-10/16
TITLE: Strunture of the Earth's Core (0 stroy"nii zemago yadra)
P&RIODICAL: Trudy Geofftichealtago instituts, Akademil na-ak SM., 195% Nr 26,
PP UT-ILP-0 (UM)
ABSTRMT: At the boundary of tbA Muft's core the propagation rate of
loftitudinal waves decreases by sharp breaks, so that known
methods for determining speed of propagation as a function of
depth cannot be a"lled. The author constructs a hodograph of
seismic wav x reflected from the Zarth"s, core based an observational
data snalped by the author and draws conclusions on propagation
rates insift the core and of the possibility of a layer of decreased
velocity near the boundary of the core. Mdern theory suggests"that
both the core and the mantle W have the same composition and that
the difference In their characteristics Is explained by phase tranal-
tion of substances In the Earth's interior. The theory of the phaft
transition of substances in the Earth's interior is supported both
by the sharpness of the boundary line between the core and the
Card 1,2 innermost core .and anomalous velocity of elastic wav a close to the

60-55-26-10/16
Structme of tbot. Earth's Core
boundary of the core and innermost core. There are 2 figuwes arA
6 referencesof vbich 3 are Soviet and 3 Eng3ish.
AVAnABIR: Library of Congress
Card 2/2
AV'

OU V/1 39-58- 5-30/3 5
AUTHORS:Melik-Gaykaz an Ya. . Yb'M=1ayev, V. A.
0
TITLE: Preparation of Alkali ide Monocrystals from Saturated
Aqueous Solutions (Polucheniye shchelochno-galoidnykbL mono-
16istallov iz peresyshchennykh vodnykh rastvorov)
PERIODICAL: Izvestiya vysshikh uchebnykh zavedeniy, fizika, 1958,
Nr 5, pp 141-L43 (USSR)
ABSTRACT: The paper was presented at the Conference of Higher
Education Establishments at Tomsk, February 1958, on Di-
electrics and Semiconductors. The paper deals with growth
of monocrystals of KC1, KBr and KI from saturated aqueous
solutions. KI crystals were grown in a thermostatted room
by rotation of a crystal about the crystallizer axis and
about its own axis with simultaneous lowering of temperature.
This is known as the planetary method. T8mperature was lowere,1
first at the rate of 0.2 and later at 0.5 C per 24 hours.
KI crystals of 40-50 9 weight were grown in 10-15 days. The
js.i crystals grown on lowering of temperature from 35 to 300C
"Fig.1); those grown on lowering the tem-
had octahedral form 1,
perature from 40 to 3500 were octahedra with subordinate
cubic edges (Fig.2) and those between 45 and 400C were cubo-
octahedra (Fig.3). KG1 was grown in crystallizers with
individual heating. Each crystallizer was hermetically sealed.
Card 1/3 K01 and KBr grow very slowly from saturated

SOV/139-58-5-30/35
Preparation of Alkali-Halide Monocrystals from Saturated Aqueous
Solutions
The crystals are in the form of octahedra (Fig.4) and are
transparent if small in size. By addition of about 0.02 mol.%
of lead chloride, KC1 crystals of up to 40 g weight were pro-
duced (Fig.5); such crystals took about 20 days to grow.
Transparent large crystals of K01 were also obtained in the
presence of 0.04 mol,%.of zinc chloride (Fig.6). Properties
of the crystals grown from aqueous solutions were compared
with the properties of crystals grown by the IKyropoulosmethod
(Ref.2). The density P , Microhardness H , hardness ob-
tained on mutual polishing of the two types of crystals.
Young's modulus E and a refractive index n of the crystals
grown from aqueous solutions and by the T~yropoulos method are
Siven in a table on p 142. The data listed in this table show
that mechanical properties of crystals grown from aqueous
solutions are somewhat better than the properties of crystals
prepared from melt (Kyropoulos method). Acknowledgements are
Card 2/3

SOV/139-58-5-30/35
Preparation of Alkali-Halide Monocrystals from Satiurated Aqueous
Solutions
made to Professor and Dr. A. A. Voroblyev for suggesting
0
this work. There are 6 figures, 1 table and 3 reference6,
2 of which are Soviet and 1 German.
ASSOCIATION: Tomskiy politekhnicheskiy institut imeni S. M. Kirova
(Tomsk Polytechnical Institute imeni S. M. Kirov)
SUBMITTED: April 17, 1958.
Card 3/3

I.Ya., sAiMTOvX IN, D.D,; Y'Liss,
MELIK-GA11KAUP1, nium chloride.
tin. on.the IcrYstallization of "010' (Min 14:9)
Pao
372!-377 tals--Growth-)
TOI: 952 . jum'-, Chloride. crY
eciA 0 (Amon

SOV/70-4-3-30/32
A16THORS: Melik-Gaykazyan, V.I. and
TITLE: On the Question of the I.nfluence of Pectin on the
Crystallization of Ammoniwii Chloride
PERIODICAL: KrIstallografiya,1959, Vol 1k, N,,: 3, pp 435-437 (USSR)
ABSTRACT: Ehrlich's experiments on the crystallization of NH4C1 in
the presence of pectin (Ref 1) were repeated.
Crystals grown by cooling an aqueous solution (with 0.01%
pectin) from 60 to 20 OC, ove'r two days are illustrated.
The influence of pectin on the solubility of NH 4C1 was
measured. A solution of NH 4C1 was continuously pass ed
backwards and-for-s-rards between two cylinders in a thermo-
stat flowing slowly over solid material. The density was
measured with a hydrometer. Curves of density against
concentration were measured at 10, 20, 30, 40, 50 and
60 OC, each curve reaching a maximui (of density). When
compared w-ith curves for the solubility of NH 4C1 in water
and in 0-3% agar-agar the solubility of NH4Cl in 0-51'D
Cardl/2 pectin solutions was increased by so-me 30%, when the

SOV/7o-4-3-30/32
Oif the Question of ttle Influence of Pectin on the Crystallisation of
Ammonium Chloride
solution was being cooled and supersaturation occurred
whereas the solubility measured on solutions saturated
at a given temperature were normal. Pectin strongly
increases the viscosity of the solution but this effect
can be ruled out by the check experiment with agar-agar.
No explanation is advanced for the phenomenon in this
paper.
There are 6 figureB and 2 references, of -ahich I is
Soviet and 1 German.
ASSOCIATION: Tomskiy politeklinichaskly institut (Tom,91c
Polytechnical Institute)
SUBMITTED: February 9, 1959
Card 2/2

3/058/6 IYOW/007/024/086
AO01/AlO1
AUMORS: Nelik-Gaykazyan, I.Ya., Treskina, M.N., Zavadovskaya, Ye.K.
-----------------------
TIM$ Dependence of F-center density~and half-width of F-band on the
composttion of KCl-KBr mixed crystals
PERIODICAL: Referativnyy zhurrml. Fizika, no. 7, 1961, 140, abstract 7V-304
(?iDoki. Mezhvuz. nauchn. konferentaii po apOktrookopii i spektr.
analiziP. Tomsk, Tomakiy-un-t I 196o, iiq lei)
7M... The authors investigatedthe F-band of absorpt%on in KCl-KBr mixed
crystals of variable composition.grown from.the smelt and from the solution. Ma-
ximum deviations of.the half-width of the,.F-band from the additive.value is ob-
served In the compound consisting of 80 mol. ,percent XBr in KC1. The largest
concentration of Schottky defects correspond,~ to :t4e same composition; this V%-SAVW
apparently explained the deviation of the,half-width of the F-band from the ad-
ditive value. Concentration of,F-centers in KC1_0~ crystals is lower than in
pure crystals of KC1 and KBr. It is possiblelthat the losser stability of F_
cant-era in solid solutions is oaus.ed by asMetry of surroundlngs of the color
Card 1/2

3/058/61/000/007/024/086
Dependence of F-center density ... AOOl/AlOl
center and increased density of dislocations in the mixed crysta i verse
.l An n
dependence of F-center stability on-thermal luminescence and density of F-cen-
ters is established.
S. Nagayev
[Abstracter's note: Camplete translation]
Ca rd 2/2

83366
S/139/6o/ooo/oo4/033/033
E201/E591
AUTHORS: Voroblyev, A.A. and Melik-Gaykazyan, 1. Ya.
TITLE: Electron and Hole Centres in Ionic Crystals and the
Lattice Energy
PERIODICAL: Izvestiya vysshikh uchebnykh zavedeniy, Fizika,
ig6o, No.4, p.239
TEXT: Many physical and chemical properties of real ionic
crystals4are related to the lattice energy (Ref.1). The lattice
energy characterizes an Ideal crystal and its relationship with
real crystals suggests that crystal imperfections may be governed
by this energy (Ref.2). Among the defects related to the lattice
energy are electron capture centres in alkali-halide crystals
(Ref.3). It is also known that the energy quantum corresponding
to an absorption band maximum rises with increase of the lattice
energy in ionic crystals (Refs.4.5). Several electron and hole
centres have their own absorption bands, each is characterized by
a definite binding energy of the excess charge captured in the
,lattice. Figs. I and 2 compare the energy quanta corresponding
to the maxima of electron and hole bands with the energy'lattice
of NaCl, KCI and KBr usin_- Sd~-Itn~,, I ci 47~~-.ta (Rnfs 7) Vo- all
Card 1/2

83366
5/139/6o/ooo/004/033/033
E201/E591
Electron and Hole Centres in Ionic Crystals and the Lattice Energy
thi3s6electron and hole centres the electron or hole binding
energy rises with increase of the lattice energy, showing a definite
relationship*between defects in an ionic lattice and its energy.
There are 2 figures and 7 referencest 5 Soviet and 2 English.
ASSOCIATION: Tomsk-iy politekhnicheskly inst:Ltut imeni S.M.Kirova
(Tomsk Polytechnical Institute imeni S. M. Kirov
SUBMITTED: September 21, 1959
Card 2/2

Z r I-)
ATITHORS:
TTTLE:
3/181 607(9?/,04/19/034
B=A63
Zavadovskaya, Ye. K., Ivankinat K. S., Volik-Gaykazyan,
I
The Problem of the Influence of Annealing on the Physical
Properties of Solid Solutions of Alkali Haloid Salto
PERIODICAL: Fizika tverdogo tela, ig6o, Vol. 2, No- 4, pp. 665-669
TEXT: Mixed crystals composed of 51% K01 and 49% KBr, as well as 49-3%
N&Cl and 50.7% NaBr were bred by Kyropoulos' method. The crystals were
kept at 6000C for 5, 10, 20, 25, 50, and 75 houral the temperature was
kept constant with an accuracy of + 2 0C with the aid of the recording
device 3WIT-09 (EPP-09). The following was then measured on the crystals:
density, lattice constant# molecular concentration, linear expansion coef-
ficiantq and heat conductivity (Tables I and 2). The aleavage faces of the
crystals were examine4 with the aid of & polarization microscope and the
camera "3'p-"H-r" Nenit"),(Figsi.--Ig -29 and 3). On heating,the vacancies
are ioncentrated and form negative crystals inside. The faces t1OOj and
J110 are paftioularly develop6d* Cleavage cracks are the cause of the
Card 1/2 X

0
The Problem of the Influence of Annealing S/I 81J6()7C0190!2!'/O4/19/O34
on the Physical Properties of Solid BOO2/BO63
Solutions of Alkali Haloid Salts
resulting pores which are aligned in one row (Fig, 3). Since the vacancies
migrate also to the free crystal surfaosq a longer heating also leads to
a slight luoreas* in density. The temperature dependence of the electrical
conductivity of a K(Cl,Br) crystal was also determined, The said crystal
was heated four times successively (Figi- 4). After each heatingj conduc-
tivity~rose further". This is possibly also due to the pore formation.
Mention is made of papers by Ro to Garber, L. Me Shamovskiy# and Ya. Ye.
Geguzin. There are 4 figures, 2 tables, and 9 references: 8 Soviet and
I British.
ASSOCIATION: Tomakly politekhnicheakly inatitut
(Tomsk Polytechnic Institute)
SUBMITTED: June 16, 1959
Card 2/2

ZAVADMrATA, Te.L; IVAIMMA, H.S.;,:Klg~11-~AYUZYAII. I.Ya.
Pbre formation during annealing of mixed 101-IRr crystala. Iristal-
lografila 5 no.2:324-325 Kr-Ap 160, (KM 13:9)
1, Tbmskiy politekhnichookiy institut,
(Potasetum chloride) (Potasaium bromide)

RLIK-GATYANAN, I.Ya.; ZA.TAMTSKAYA, To.K.; TRLUINA. U.N.
DistIribution of Impmrities in crystals of alkali halide salts.
Kristallograflia 5 no-3:477-478 '60. (KIU 13: 8)
1. Tomakly politekhnichaskiy institut, Im. S.K.Kirova.
(Alkali halide crystals)

2o623
3/063/60/r,05/005/012/021
A051/AO29
AUTHORS% Toroblyevo A.A., Professor, Zavadovskaya, Ye.K.. Professor,
Boldyrev, T.T.p Candidate df Chemical Sciences, Kelik-Gaykazyan,
I.Ya., Candidate of Physical and Mathematical S6-I`e`Kd-e-s-,--3-aVTWnt73ev.
Candidate of Physical and Mathematical Sciences
TITLEt Physico-Chemical Problems of Dielectrics
PERIODICALt Zhurnal Vsesoy-uznogo Khimicheskogo Obahchestva im.D.I.
Mendeleyeva, 1960, go- 5, Vol. 5, PP. 573-582
TEXT: Dielectrioal-mate7rials should-have a high thermalp chemical and radi-
ation resistance, a high mechanical and electrical strength, in some daises
they should have a low value of the angle of losses, a low electroconductii-
ity and.a high dielectrical constant (Ref.1). Some of the.more recent
fields of application are scintillation counters, where the dielectrics with
a large width of the forbidden zone of energy are used, or in explosives
(Ref.2), Where the electronic and ionio processes which occasionally take

20623
S/063/60/005/005/012/021
Physico-Chemical Problems of Dielectrics A051/A029
place in the dielectrics are applied. In outlining the physico-chemical
properties of dislectriosp the connection between these properties are dis-
cussed in reference to the energy of the lattice. It is pointed out that,
since little is known of the physical processes in dielectrics when acted
upon by an electrical field, chemistry and the science of electrical materi-
als is mostly empirical. The physical properties of dielectrics in relation
to their chemical composition and structure were studied. The dielectrical
properties of simple substances with a known chemical composition were in-
vestigated (Ref.1,4-24). It was found that the main properties of the di-
electrice (thermal resistance, binding energy of the elotron in the lattice,
mechanical strength, optical properties, etc.),were directly determined by
the strength and nature of the particle bond in the lattice. Under the ef-
feot of external conditions the interaction energy between these particles
can be overcome and the lattice destroyed. A number of graphs are presented
indicating how the various properties are affected by the lattice energy, i.
e., the energy value necessary to divide the crystal lattice, consisting of
ions, to individual ions and separation of these from one another to an in-
fini-tely large distance at a temperature of 'absolute zero. The case of bi-
nary ionic compounds of the AMB. type, as described by Kapustinskiy (Ref. 25),
Card 2/-*T*

20623
5/063J60/005/005/012/021
Physico-Chemical Problems of Dielectrics A051/AO29
is given where the calculation of the energy of the lattices with a coordin-
aiion number 6, is estimated according to formula (1)3 U'- 256.1
(a + b)WA-WB
+ R Where a is the number of cations, b the number of anions, WA
R
A B and WB the valencies of the anion and the cevion, RA
and RB the radii of the corresponding ions for. the structure of a lattice of
the sodium chloride type. A later version of the formula, where also the re-
pulsion,as well as the attraction of the ions is considered, in given aso
U - 267.2 WA- WB(a + b) (I - -2-'14~-) (2)~ The ionic crystals have a high
HA + RB RA +RB
value of lattice energy and thus also a high value of thermal and mechanical
strength. In the case of Isodesmic ionic lattices of the same structural
type, the properties of the materials are co nnected with the energy of the
crystal lattice determined by the chemical composition. Fig.! is a graphical
representation of the effect of the hardness according to Moos, melting
point, electrical strength of the ionic crystals by the lattice energy, Fig.2
shows the same relationship for alkali earth metal oxides. From equation 1
it is seen that with a decrease in the size of the particles, which make up
Card 310

2o623
S/063/60/005/005/012/021
Physico-Chemical Problems of Dielectrics A051/~029
the lattice, the lattice energy increases. Fig.3 represents the relationship
between the change in volume of an elementary nucleus of a molecule (Ref.3)
in various compounds according to data from X-ray analyses, and the lattice
energy for crystals of alkali-halide c?mpouncis~ Fig.4 gives the relation-
ship of the number of ions n in one cm to the.lattice energy for crystals of
alkali-halide salts. The value of n was determined froms
n M-d 7 (3), where N is - 6.06,1023, d the specific gravity, A and A
- 2(A1 +A2 1 2
atomic weights of the ions. The specific thermal capacity a , at a constant
pressure, is given in Fig.5 in relation to the latticecTiergyp and Fig.6 shows
the relationship of the melting heat to the lattice energy. Experiments show-
ed that the optical properties of ionic crystals also depend on the lattice
energy. With an increase in the latter, the absorption of light o hanges in
the infrared, visible and ultraviolet regions according to certain rules.
The electronic polarizability in relation to the lattice energy for alkaline
halides is shown in Fig.8 (Ref.30,31). A decrease or an increase of the di-
electrical constant and of its components will be noted due to the shift in
the ions corresponding to the change in the ion polarizability of the ions
and their concentration with a change in the lattice energy. Fig.9 repre-
Card 4/e-

20623
S/063/60/005/005/012/021
Physico-Chemical Problems of Dielectrics A051/AO29
sents the change in the electronic component of the dielectrical constant
with a change in the lattice energy for crystals of the alkali-halide Gom-
pound series. The relationship oil the electroconductivity to the tempera-
ture of ionic crystals is described by the formulag
6'= 6-je-u1/kT + Gr2e-up/ 10
where u is the activation energy of the libera
tion processes of the ions in the lattice. Experimental data showed that a
significant increase of'the high-temperatuxe range of the activation energy
takes place with an increase in the lattice energy of the alkali-halide salt
crystals. The sum of the activation energies at low and high temperatures
was found to depend on the lattice energy. The conclusion is drawn here
that the electroconductivity of the crystals is connected with the energy of
the crystal lattice in a law sequence. Other properties, such as the effect-
ive mass of the electron and the magnitude of the oscillating quantum, are
also thought to depend on the lattice energy. It is pointed out here that
these relationships must be accurately established. The electrical strength
of the dielectric is thought to increase with an increase in the lattice
energy (Fig.10). Other properties, such as the thermal resistance of the
Card 5/W
1

206Z3.
S/063J60/005/005/012/021
Physico-Chemical Problems of Dielectrics A051/AO29
ionic crystals are in a reverse relationship to the lattice energy9 but this
phenomenon is assumed to'be illusionary, since the decomposition of these
substances is also determined by the ionization potential, aswell as the
lattice energy. The reverse relationship is also observed in the case of the
heterodesaic structures. Data obtained from Refs.9,10 on a comparison of the
physico-chemioal properties of liquid a 'nd gaseous organic dielectrics with
their electrical strength in the aliphatic hydrocarbon series showed that the
electri6al strength changes sympatically with the change in the intermolecu-
lar bond strength and does not depend on the bond strength within the mole-
cule. These results were used to form a graph of the spark-over of the or-
ganic dielectrics (Fig.11). Further mention is made of the connection be-
tween the physico-chemical properties of dielectrics and the lattice energy
when the structure is destroyed. The contraversial facts noted in real crys-
tals,viz., the mechanical properties of these single crystals changing ac-
cording to certain rules with the change in the lattice energy, are explain-
ed by the behavior of the defects, especially of dislocations, i.e,, by the
energy of the crystal lattice. One of the possible means for obtaining a
controlloble cone6ntration of the defects in the lattice is the formation of
solid.solutions, Upon investigating the electrical properties of the solid
Card 6/0

20623
S/063/60/005/005/012/021
Physico-Chemical Problems of Dielectrics A051/AO29
solutions CaO-ZrO 2P a defect in their structure was noted (Ref.47). A com-
plex investigation of the physical properties of the solid solutions KC1-RbCl,
KCl-KBr, NaCl-NaBr was carried out. It was proven that the general oharac-
teristic, which determines the physical properties of a complex dielectric,
was the heat of formation. It is expected that a drop in the interaction
forces w6uld involve a drop in the strength and an increase in the defect of
the solid solution. The relationship between the heat of formation of the
solid solution and the average number of particles n included in the volume
of the elementary nucleus (for an ideal single crystal n - 8) leads to the
conclusion that the more heat absorbed in the formation of the solid solutior,
i.e., the lower the energy of interaction of the particles in the crystal
lattice of the crystal, the more defective is its structure. The connection
between the defectiveness of the strueture and the lattice energy leads the
authors to assume that the laws obtained for the single crystals are also ap-
plicable to the polycrystals used commercially. Finally, the authors discuss
the connection between the physico-chemioal properties of solid solutions of
alkali-halide salts. It is said that the introduction of admixtures into the
crystal can lead to a change in the interaotion between the particles of the
crystal lattice of the substance. Experimental data on the physico-chemical
Card T/W

20623
S/063/60/005/005/012/021
Physico-Chemical Problems of Dielectrics A05-1/iO29
properties of solid solutions of ionic compounds are compared and certain as-
sumptions are therefrom derived on the interaction of ions in the investight-
ed systems* The most important value characterizing solid solutions is their
heat of formation and reference is made to the formula used by Grimm (Ref.61)
for caluclating the energy of the crystal lattice. The heat of formation of
the solid solution is estimated experimentally as the difference between the
heats of dissolution of the solid substance and the mechanical mixture of
components having the same weight and composition. The connection between
the heat of formation and the electrical properties of the alkali-halide
golid solutions is noted. The electrical strength of NaCl-NaBr, KBr-KJ, KC1-
-KR4 NaBr-KBr is lower than that of the component3d Solid solutions formed
by heat absorption have a weakened structure and are characterized by a low-
ered electrical, schematic and thermal strength, high dielectrical losses and
a defective structure. The electrical characteristics of dielectrics are
connected with other properties, e.g., in the case of ionic crystals with the
lattice energy, in homeopolar crystals with the energy of atomization, in
molecular crystals with the energy of intermolecular bonds and in solid so-
lutions with the amount of heat liberated in their formation. All these va-
lues are the higher, the higher the mechanical, thermal, chemical and elec-
Card 8/0

S/06Y3AOj%/005/012/021
A
Physico4hemical Problems of Dielectrics A051 A029
tric; t
al s rength'6f,the dielectrics. The' authors point out that in selecting%
terial ~for (fidlectrics (boron,~ si-
new ma s I 'compounds with highly-charged atoms
etz.)jlshould be combined with non-deforming atoms creating rigid bonds
(nitrogen, fluorine, etc.). It is worthwhile to investigate the possibil-
-:Lties,of using*te,mperatures and pressures obtained in explosive processes and
electrical explosions when producing dielectrics to overcome the high activa-
~~tion barriersof the reaction. The problem of selecting new dieloctrical
materials' is*a matter for the chemist,as well as the physicist. There are
:15 figures, 4 formulae, 1 cable and 61 references: 62 Soviet, 12 English,
6 German, 1 unidentiTied.
,.Card 91.W

MALIK--rAYKAZTAM. I.Ta.; ZAVAMVSK&YA, TO.K.; TR=M. ICV-
-------------------------
Iffect of firiz6- on the absorption spectra and electric
condactivity of the crystallophosphors YaGI-ft and IMI-Eb.
OPtA spektr. 9 nool:83--85 JI 160o (XIBA 13: 7)
(Phosphors-4pectra)
(Phosphors-glactric properties)

HELIX- I. Ta. ; ZAVADOTSKATA, TO. K.
Relation between the If-band balf-vidth of solid solutions of alkali
hlide crystals and their defectiveness. OptA spektr 9 U0.4:
516-517 0 16o. ZHIRA 13:11)
(Alkali halide crystals--Spectra)

85050
S/051/60/009/006/012/018
E201/E191
AUTHORS; Melik-GaykazLan, I.Ya., Treskina, M.N., and
AAdva(Foys Ya,, Ye TL
TITLE: The F-Band Half-VIdth and the Density of F-Centrayin
Monocrystalline KC1--EBr Solid Solutions
PERIODICAL: Optika i spektroskopiya, 1960, Vol.9, No.6j PP 782-78Lr'
TEXT: Several workers (Refs 3-5) studied imperfections in
solid solutions of alkali halides, The degree of imperfoction was
taken to be represented by the difference between the density
measured by weighing and the density deduced from X-ray diffraction
Irystallography. If the imperfections are all Schottky defects
(va-.;ancies), then the maximum of the degree of imperfection should
oncur at the same composition at which the half-width of the F-band
Is greatest.. This was found to be true in KC1--KBr crystals
(Ref.5)~- the maxima of the F-band half-width (Ref.1) and the
number of Schottky defects both occurred &-t 60 mol,% RbCl in 01.
The present paper deals witb KC1-.-KBr crystals grown froid solution
and from melt. It was,found that tue maximum of the Schottky
defect density (Xv) occurred at about 80% KBr~ compared with the
Card 112-

85050
.,1/60/009/006/012/018
Slo<
3201/Z191
The F-Band Half-Width and the Density of F-Centres. in
Monocrystalline IC1--HBr Solid Solutions
maximum of the F-band half-width (y) which was at about 70% KBr
(Fig.1). It was.also found that the density of F-centres (no)
had a- maximum at about 50% XBr and minima. at 20% and 90% KBr
(Figc2j. The value of no was lower irf XBr--KC1 solututons than
.In pur-aHBr or in pure KC1~ due to the lower stability of
F-centres in solid solutions (a table on page 783).
keknowiea,gements are made to V.V. Boldyre andA.D. Shchelakoy,
for their advice.
There are 2 figures, 1 table and 6 references: 2 Soviet,
2 English, 1 German and 1 translation from English into Russian.
SUBMITTED: May 3 1 196-0
Card 2,/P

14ELIL-GAYMZW,_I.la,;_MELIL-GAYKAZYAN, V.L
Device.for the determination of solubility in a vide temperature
range. Izv. TPI 105:218-221 6o. (MM 16t8)
1, Predstawleno, nauchnys seminarox rediotakhnicheskogo fakoliteta
Tomakago ordens, Trudovogo Krasnogo, Znazeni politekhnicheakogo
instituta imeni Kirova.
(Solubility-Masurement)

HUM-GAYUZYAN LYa.; YAYDAROVSKAYA., H.D.
Defects. In KC;%- XBr solid solutions. Izv.v]rsucJwb.z&v.; fis.
U061:174-175 16.1. (ML 14:7)
1. Tomkiy , politakhnichaskiy lzatitut, Imeni S.M.Eirova.
(PbtassiuA Ohlorlde"A' tala-Defects)
Am
Obtasalum bromide c tAaa-macts) (Solutions,, Solid)

ZAVADOVSKAYA,, Ye.K.; TRESKM.. M.N.; HELIK-C-AYUZW, I.Ya.
---------
Effect of impurities on the electroconductivity and absorption
spectra of alkali halide crystals. Izv-.vyz.uchebzav*; fiz. no.2:
66-70 161. (KM 14:7)
2. Tomakiy politekhnicheskiy institut imeni S.M.Kirova*
I L.. (Alkali halide crystals)

S/139/62/000/006/031/032
E039/035
AUTHORS: Melik-Gay-kazygn. I.Ya.. Vaysburd, D.I.
TITLE. The formation of F-cantres in solid solutions of KC1-KBr
PERIODICAL: Izvestiya vysshikh uchobnykh zavedeniy, Fizika, no.6,
1962, 114-176
...TEXT: Samples of single crystals of KCI-Kgr solid solution
thickness 0.2 to 0.4 min are irradiated with X-rays (Me anode, 15mA,,
56 kV) filtered through Zr filter 0.2 min thick at a dose rate of
17,0 r/min. The com:
position is determined from the position of
the F-band maximum in the absorption spectrum. Curves showing
tj~e~ dependence of the' F-centre density with exposure have a fa-st
no4linear rise followed by a slower linear rise. The former'is
asgumed to be due to anion'vacancies and the latter F-centres
formed from radiation generated vacancies. In quenched sa'mples
the F-centre density is always higher than for,freshly grown
Samples. The rate of formation of defects,must depend directly
on the X-ray absorption coefficient and inversely on the energy of
the crystal lattice. Results of experiments on irradiation of
samples up to a dose of 40800 r show that Maximum F-centre
density `-4-3 x 1016cm-3 is achieved for --6'ure KCI and that the
Card' 1/2

S/139/02/000/006/031/0,12
The formation of F-centre~j ... E039/E435
density falls o9f steadily as the KBr conc6ntration is increased
to - 0-7 x 101 cm-3 for .4-mole '% KC1. In addition, the slope of
the linear part of the F-centre build up curve decreases as the KBr
content increases, and in,-t*he case of 4 mole % KC1 shows that
saturation is attained. 'It is assumed that, under the conditions
of these experiments, with;the increase izi KBr content the rate of
destruction of F-centres by X-rays increases faster than the rate
of.their formation. There are 2 figures.
ASSOCIATION: Tomskiy politekhnicheskiy institut imeni S.N.Kirova
(Tomsk Polytechnic Institute imeni S.M.Kirov)
SUBMITTED: November 14, l961
..Card 2/2

GRIGORUK,,L.,V.;_.ICUK-GAYKA2XAN, I.Ya.
Effect of heat treatment and I raying on the activator aboorptien
'jpect~.a of NaQ - Pb. Opt. L 'spektr. 7 no-4:515-517 Ap 162.
- OURA 15S 5)
- (Sodium chloride-Spectra) (Radiation)

q
5/161/62/004/0013/031/041
B108/B102
AUVICHSt Hoshchina, L. I., and Molik-Gaykazyan, 1. Ya.
TITLEs Effect of dislocations on the distribution of coppor impuri-
ties in NaCl crystals
PERIODICAL: Fizikd tverdogo tela, v. 4, no. 8, 1962, 2261 -' 2263
TEXT: V~arious properties of pure and copper activated NaCl crystals were
studied. The dislocation density and the Cu ion mobility in rock salt
was greater than in artificial NaCl crystals. The number of impurities
at cryatal defects per activator center is greater in-rock salt than in
artificial NaG1 crystals activated with Cu. This causes a lower activation
energy of electrical conduction in rock salt which manifests itself in the
observed greater conductivity. There are 2 figures and 1 table.
ASSOCIATIONz Tomskiy politakhnichaskiy institut (Tomsk Polytechnic in:--
Stitute)
SUBIAITTEDt March 30, 1962
Card- 1/1 -

L
NP------'ALR5000775
ts larger in the

- - - - - - - - - - - - - - --
eleetrdll irr
_:WNwdment __r 4amage, on -irre a Lou solid-
soli 941iiti

IGNATIYEVA,# M.I.; ZAVADOVSKAYA., YO.K.; ISLIK-GAYKAZYAII., I.Y&O
F-Ofect of divalent imparities on the radiation stability of
41kali halide crystals. Fiz. tver. tela, 5 no.10:M5-2779 0
163. (MMA 16:11)
1. Tomskiy politekhnicheakiy instituto

ACCESSIOMXR: AR4034658 3/0196/64/000/003/BO04/BW5
SOURCE: Ref:,Zh. Elektrotekhn. i. energ., Abs. 3B25
AUTHOR.: Zavadovskaya, Ye. K.; Malik-Gaykazon, I. Ya; Treskina, M. H.
Effect of impurity distribution in crystals on the electric conductivity.
Abstract
CITED SOURCE: Izv. Leningr. elektrotekhn. in-tas vy*q. 51, 1963, 179
TOPIC TAGS: crystal electric conductivity, impurity distribution in crystals,
crystal absorption spectrum
TRANSLATION: 1. A. Parfinovichle bypothesis about the impurity ions in the crystal.",
Ilattice, points being responsible Zor the long-wave line of additional light
:,,',absorption in the ultraviolet range is corrobot-ated by experiments with crystalp
KC1 - PbC12 and NaCl - PbC12. The short-wave line of absorption is apparently
t.!associated with the impurity ions situated at the borders of contact surfaces in
,Ithe crystal. The feasibility of observing dual distribution of impurities in a
crystal by means of optical absorption spectra permits solving the problem which
of the Impurities - the segregating one at the boundary or the one forming a
,;regular part of the crystal lattice of the base substance predominantly
112

ACCE~ION Mt: AR4034658
l'influences the electric conductivity of the crystal. &perimental results show that'
L'Pb introduced into 01 modifies the electric conductivity stronger t1um Pb
':~introduced into NaCl. Also, the conductivity of IM - PbClS grown from an
.!,,aqueous solution is lower than the conductivityof the same crystal obtained
from a malt. This conductiAty variation agrees.-with redistribution of absorption
lines in the crystals grown f~ma+solution. A prkonged annealing of Ka - PbCla
and NaCl - PbCla crystals results in a solid-solution decar Which,is corroborated
by a variation in their abn6rption spectra and in a reduation.of th*ir conductlvitr,.,
[Tawkir youtakhnich. in-t im. S-I N. KIrova3
DATS ACQ: 10Apr64 SUB CMS 88 =Mt 00* -
C d
ar
If J

GRIGORUK,v L.T.; MRLIK-CAYKA.ZYAN.. I.Ya.
--: -
.IVurity distribution and formation of color centers under the
action of I rays in ITAQ-Mh~ MaCIP and MACI-Pb. Opt, i spektr.
15 no.3094-399 S 163. (MA 16:10)

the-lAtt ce :of the
-P OSP Or. -~md~.forois- eso-sle
s arysta 1~ -there's.'- M. ..Kaksimo,,4.

-o6

J~ 4

zz r
To-

iz
C 1- 2:

=12

ACCiSSION NR
A24028465
AUTHORS: ..,,1Aa1-ik&G.Vkazyanp 1. Ya.; Zavadovskayaa Ye. X.; I&attyeva" X. 1.
TITLE Change in electrical conductivity of X01 crystals on addition of bivalent
iimpurities after x-ray irradiation
'SOURGE: Fizika tvardoga, tela, v. 6, no. 4, 1964, 2243-2246
TOF C TAGS: :condur X01i KCI crystal,, z
I tivity, electrical conductivity -ray, 7
-:cantor, Pb doped K01,, Sr doped,XCls F cantor dew~tyi_iqpurlty, Impurity cancan
'tration, c carri hole center
UrTent or,
ABSTRACT: The aitthors have studied the ionic conductivity,. Its radiaticii change
iduring equal doses of x- Irracliation (, 4*104. roenitzew) in KC1-Pb and KG1,Sr
prystals,, -and. the density of F centers -in X01.3r. Pb-and Sr impurities have alto-',
1ðar different captor properties relative t as. P~2* in N&C1 Is
acl o'bol an
!aceaptiar of-electrons,, but srg* in X01 gives ris
a to activator hole centers. Th
KC1 a eoioara~iva4 small increase in'tilectrical.conductivity awompazyiAg the
-injection of Sr up to 2-10-2 molecular percent co=41sponds to an increase in 7
L-a rd

yog
9439-,

7771
el -7
-,.Cross
of' :d b qt ~the -same kind
L133.Ocat on centekw.crrowt i~..curves we e.
-?q
as -lend' growtV~curves- of NaCI aingle cry talsi ~Dislocation-free
samples grown from the gaseous phase had a completely different
of F-center generation, with saturation in the second stage
Simi-
(Iocalization of electrons at radiation-generated vacancies).
lar grovith-curves were found for some 20--30 ~L thick solution-ciro-wm
ivhiskers, vfaich were obviously of the "exceptional" type just men-
Itioned.. The presence of a linear reglon in the growth curves indi-..
.cated the generation of anion vacancies. This supports the conclu-
Isions of severall workers that radiation may generate vacancies and
~F%~eWjcell defects in a perfect crystal. The saturation of the pro-
ceen of the F-center generation may be due to the saturation of the
vacancy generation process itself or due to the establishment of a
1 radiation equilibrium between the F-centlers and complex electron
cztnters. "Sasurements of the absorption spectra showed that-the
pziaition and the-half-width of tha F-band f,&z all the investigated

- , ---.- "- - - , 4
i -I..- - ~~
-,-- ~ k~
- - --. Abo
--- 7qu-, zi;- A- - ~

fi~~
al d i s, Lid
rre.v
-are n yze..,
i:44Sq' th!27~~A f --the_'F4 M react ion
ove ps and, 2 statisti.
ra i~ multipie cente
over th lociajixa-d u in
on- m itip-Licity, A k etirz equatidt~.:.-

SCOMM i, -Fi-, 1~ *r- C16~
~X:
TIO P Tl C TAGS'., ta-1--ijr-rAdiation. arystal vacancy', radiative crystal v4cancy,
center
!ABSITA~'T An- 'LnVi~st gation was of Mae accum'.1latioll a centers in KBr cryst
rr: it':-! if t11 Pro,ons accelerated 14- lo IhIev i n a cvnlotron r, o that ar, eXT)eri-
-y
d-! te-minatinn could be mmd?~- -f~ rjfjuence oj- $r -~pjrlt~ , zi the radiative:.
wn 1, Ili-! 1.1~!TJTIJ ?100 '0V thC E--!)-
0 C', of ligilt in the maximix-a c~f tl~,e !--baad. The par-ameters -for the Mitchel-
>21 -,-h kinetic eqpaatioli vere detemnined on the basis of the accumulation of F-
ax es -ids
m; . lhe rate of generatloa of on raidiati- - Tva-, ici I
rc a I depe,
i--h,:- r!-tte &e veneration of vace-neiea (a), on the capture of electrons by~those
act/c +-a (index w shovig that param-
V:~ c -ant lf~i 3 %c an on~-1-4dldtillrie' decrq
-,r,:!! zarle- radistire decay o -centeru). The genera'ion rate of F-centers in
c,-fstals is greater than in r.-,Lre cryntala. However, this does not mean that,;'
J.r.-w-,.-ity, increases the rate o--,' generattion of vacancies (a), because'when an im-,
[Card IL2

~ -L-9671o-66