SCIENTIFIC ABSTRACT BERDYANSKIY, B.M. - BERDYSHEV, A.

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BERDTAISKIYF S.A., insho '. ~ Self-sha.nmnIng knIvits of rotary outt*ro. TrAt. i sollkheaush. m6s 30-31 Je:165. (MlRA 180) 2, Rostovskiy nauchno-isslodovatellskiy Institut tokbijolegli vashinoatroyanlya. BKM'ANSXATA, M.G., inshener; PUSRXAMMO. L.D., insh6ner. Painting agricultural machinery with Inihoated paint. Sellkhozoashina no.4:26-27 Ap 154. (KWIA 7:5) (Painting. Industrial) CHIM=, A.P.; TAT111. Ya.L., datmentg BERM-JJSlff N.G. inshener-, lkM,SXIY, I.M., inshonar; SIMBARUnIA, Reducing longitudinal differences In tho walls of pipex made on automatic sills. Stall 15 no.1158-62 J& '55. (nm 6:5) it. Deyvtvitella" chlov, Akedomli sauk WMR (SO'Chebmicev) 2. Dnepropetrovskly mete.11urgichaskiy inttitut I Trubopro~;tvy zstvod Im.lenina. (Pipes, Stool) (Ralling-mill mcid.nory) AUTHOR: SOV/133-58-10-20/31 TITIE: Mezhanisation and Automation of Tube Production (Mekhanizataiya i avtomatizatGiiya trubnoESo proizvodstva) PERIODICAL: Stall, 1958, Nr 10, pp 926 - 930 (USSR) ABSTRAM: A brief review of the work cea-ried out by TsLAM. The laboratory was Bpecially orgEiLised on the Lenin Works to assist in the cf t-.~bc-nanizfacturing processes in the Dnepropetrovsk economic and administrative region. The following are mentioned: 1) scheme of an experimental mechanism for turning Bemis in a roller beating furnace (Figure 1 2 a scheme for automatic marking of tubes (Figure 2~-,i B a forging machine for closing tube ends before drawing (Figure 3): k-', modernioation of various mechanisms before a continuout; mill at tl~e Lenin Works; 5) MeanG Of BIL installation for detecting defective tubes (based on ultrasonics) and for measuring f inished tubes. Card 1/2 sov/133-58-10-20/31 Mechanisation andkutcmatLmti~u of Tube Prcd.uction There are 3 figures and 2 Soviet references. ASSOCIATION: TsLAM pri zavode im. Lenine. (TsLAM at the Works imeni, Lenin) Card 2/2 ,q/1 _:WWOW/0 I I/ OV9/0 ii Aoo6./Aooi Ak ".ORS G,, Brodskly, -., I., Voynov, V Gnilenkc, B, A.." GrinviLlId, V, A , Kryukov, 0, Ya, TTTLE~ Mechanization and Automation of a Con~-Extractcr of a Continuous Pipp Rolli;nq Mill. PERIODICAL: Me'.&llurg, 1960, No. LL, pp, 30-33 TEXT,7 Information is given on the mechaniz-1.1 and witamattd operati3r. of a core -extractor of a continuous plp!!~-roliing m.411 Including the followll~ compo- nenta- a rest (Fla. 2) ; an automatit! trollAy (Flit. 3) ; a core-dropping mach!ne (Fig. 4) a pipe-extractor (Fig. 5) and a pipe -dro.pping machine (Pig, 6). The pipes with the cores are supplied to the rest whoso jaws retair. *,he pipes during the extraol;ion of the cores. The opening of the Jaws allows th:~ passage of the izores only, The jaws ar," exchar4;eable depending ..-ak "tie diametlx!~- of the mfv. One or two cor,~s may be extracted. The slariltane,nis extracti-;r, of two cores is performed with the aid of the automatic tralley. 'No toTurs with jaws ar! opened when cmt;%oting the cores allowing the passage of -,h^ core haad3 which fall upon the pawl tail and disconne,?t It ,'row th~~ protubqru~-~! or thr- triction hook nob. Card 1/7 S/1 -40/60/OCKD/O 11/009/0 11 A006,/AGOI Mechanization and Automation of .% Core-Extracto- ot a ContlnucljE Pive Rollf_ng MM A spring Vits the I ever undoirneath the pawl to prev,~n* .,-lu*.ch11n'g w1th the aforemeatione(i protuoerance during extra.~tion. TJnJer tne e,fe:t of its. rrope?, weight the hook Is switched on. The tongs, brought togi~-'~ner L-1 a s,-)rLrLg, clamp the core head and extraction is start-d, After completed AxtT&,-t!,:kr, the -tongs are opened and the core released. The trolley mcves back t;,D tl-ze r,93t. '1he cores are r-moved and ro:,led down into a coollng bath, After r,~m:)val of the Mandrels, g, -he Info-mat" the pipes !Lre extractid from the rest and dropped Int-, a housir, r, Inoludes tie detailed descriptlai of the automatic ccnt7ol C ard 2/ 7 S/ I 3r,/bl-'./(,-.,O/L, 1, C A0061AOOI Mechanization and Automation of a Core-Extractor of a Continijous Pipe ;wlt Mill Figure , Rest 1 jaws; 2 - counterweight; 3 - owns; 4 shafts. Figure 3. Automatic trolley I - tongs; 2 jaws; 3 - pawl; 4 - tr traction hook; !i - lever; 6 - springs; 7 - roller; 8 roller of the dented section; 9 - rod; 10 - stem; 11 - hinge. Figure 4. Core dropping device I - pneumatic cylinder; 2 - vertical cylinder; 3 and 5 - lovers; " - stem. Figure 5. Machine to extract t-ie pipes from the rest I - pneumatic cylinder; 2 - fIng. Card 3/7 .60/000/011/009/011 V 130/ ,,oo6/Aooi Mechanization and Automation of a Core-Extractcr of a Cont;i,jous Pipe Lolling Mill Figure 3: ,ep,weas Card 4/7 A006/),001 Meahanizektion and Autcwnation of a Cora-Extracto:~ of a Continums Pipe Rolling Mill Pigure 3t Card 5/7 S/130/60/000/011/009/011 A006/AO01 Mechanization and Automation of a Core-Extractor cf a Cnntinuous Pipe RoUing Mill Figure 4; FiguVe 5: ~41 r card 6/7- S/130 A006/AOC I Mechanizatim and Automation of a Core-Extractor of a Continuot:i Plre ik,.LL1._V; Mill Figure 6. Pipe droppLrZ machin I - lever; 2 - connecting rod; 3 - housing, I and II - corresponding upper and lower position of the dropping lever; III - trajectory of point "a" during operation of the device. There are 6 figures. ASSOCIATION: Card 7/7 27 L11 ZEP)~LKTX,jl&., inzh.; BRO:)SKIY, 1,I., inzh.; KRYUKOV, 3.Ya., inzh.,- SLYU.-)'jUZV, A.11. , inzh, Automatic marking of b:~t pipes. Mekh,:L avtom.proi-w. 15 no.11: .15r-16 11 161. (MIRA 14:11) (MArking devices) (kutomatic con';rol) 3/133/6 2/OCO/O0 1/007/C) If, A054/A'.27 AUPHOWD: Boniynnikly M 0 brodskly, 1. 1., Iturakovskly, IF. N., -- --- _4 -- 1 0.. Dollnik, T. I., 3idorenko, V. M., Engineers T ITLF - Friction-type tube pushing and turnii-4; device on the atitomatic tube rolling mill PERIODICAL: Stall, no. 1, 1962, 60 - 61 TUT - To replace the cranky pneumatic drive of the "14011 automatic tub.? rolling mill of the zavod im. Lenina (Plant im. Le:.-iin) by a member more sultablp for thiD automatic process, a new pushing and turning device ha-i been developed at the 7`3entral'naya laboratoriya automatizatsii I mekhanizats[i Dne-propetrovskogo sovnar...,hoza (Central Laboratory of Automation and Mechanizati,-n of the rrnepro- petrov3k Sovnark-hoz) in cooperation with V. F. Veyevnik, Engin?er, L. F. Kandyba, Fnglneer, I. P. Ivanov, Engineer, Ye. B. Byutner, Engineer, L. I. Vity,ov, Tech- nicl"In. The now device, which consists of frictlon rollers, Ic mounted on "he front tabie of the mill, at 4,850 mm distance frc-m the rol -I axis. The mecnanism vishes the tube omo the stand and turns it throt~gh 900 before the second pass. T'-ie pusher i.,i controlled from the mill switchboard. The friction rollers are in Card 1/ 2 S/ 133/6 )2/000/W 1/007/010 FrAction-type tube puahing and ... A05II/A 127 ,!orsf-ant rotation ard the distance between them Is regidaled by the operator vl;i in elec~.ro-pneijm'if-lc (itstribut.or. The head part of the tube J.s grIpped by the rollerz,, when it, ciltde:3 down cn the Inclined frame and J3 pushed by fhern i nl,r, I re st.and. 11he rolls then return into their Irdltal nosition. Wren cwi,~.~ b,~-en completed, the reversing rollers move the tvbe or, to 11-1e 1-0n- table. T.1~1[z time the fr.~,~,fion ro-lers jzri r i~ p 4-~~e tijbo~, 11ft It. i-d t~j.-n ;-j'. f',jk~ 3,LrT,s? J,Jjjr~ ferding It, into the sf.md. The new device ~ijts dow7n -i-~ ic-i tirvori )t tubr bL,--nk3 (1-3~ rvn in d1wneter and 90C - 1,050 mm long) from 1.1 f--~JTnlng IV4~-r and Vii1king in the tube foi lte pat..,: liie& (I.-) To- rojilng (~yclt wpc, cut by 1.33 Sec wITn the frt~t-lon tyPR fee'~,"rm Diffpreri-e-; In walL-fhickne-i~- (Iongltudtnal and acrcse) of 1-ne 4'j~)C--q croj;d be eLimmated, because the nPw pushor en:3-.jra3 an a:ic-;~rf,,~e po,-ItAnning v~-!ca. dire-t.Lon of 4--he i.libe edire tefore "i'ne second pass. lhe Mill-I lnrr-~azted by ~%. 7here are 2 figures. card ?/r-~ VATKIN, Ya. L.p kand. tekhn KIY, M. G Inzb.; BRODSICITP 1. 1., tnzh:,raRUYT~,. ~. - -1 bLPOVSM, 11. J4." LU~Inzb.t ~ irah.; KAGARMTSKIY, A. 5o# inzh.l ENSNIYP A. M.1 insh, Fixed mandrels on automatic milIB. Nauch. trudy. WI 110.48.- 174-1115 162. (MIRA 15.'.-10) (Pipe milla) SAVYJZIP P.V., :~nzh.; FARTSHKIN, N.V., in-,,,ti.; BEN)YANSE-7Y, M.G., inzl,. Ways of improving the performanco of automatic pipe mill equipment. Stall 23 no.10:927-9;!E; 0 163. (MMI 16: 11) BE RD USS4 TH I, M.."C,.; CH US , V.G. ; DBODSM I Y, I.:.; vFyF7'q.-- S. ; 'I. F . ; 7:TIN:7,11 L.T.; GRINVALT, V.A.; TOLDAYEV, A.3. Aut.,.T,W.1,2 vicEint, f~-,r s,~viwing tinj(,ns. D!ul. t-kh.-ekon. infi~rm. 17 Inst. nwmh. i ti.~h. !nrcrz.. ~ no.12s27~29 D 164. (.KRA 19:3) VATKIN, Ya.L., doktor takhn. nauk; in--!..-. BROEGM, I.I., inzh.; DOLINIK, T.i., irizh.; K03TYUGHI'-',,'~KC, TUDAYIN, A.S. inxh. Rag!ulator of the longitudinal wall th".Anes--~ variat.ion Jinpip.~. Stall 24 no.9:832-833 S I.1)4. (m]"m I,1:10) i. Dne, proprjtrovt;kiy uxtii-I lurj,!(~h-skiy inntilut i ",-',ow.raL Irmyn I it !A) ra t or I yu it v tuma t j za tz i I i i mo khai 1 11 ~ -, - 1~ ~;' I i~;- 1 -,- ;- L~ %, -~;r, ~, ~ j j 1) v t-, 1, a narodnogo khozyayotvr.,. BERDYANSKY,_~.G * ERODSKIY I.I.; DONETS, V.V.; VEMNIK, V.F. ' -J- I P 14schanit)m for Introducing dry lubrication Into thei pipe shell before entering the rolling mill. Metallurg 10 nci.6t28--30 Je 165. (MIRA 18s6) ACC NRi Ai,6025579 CE CODE: uR/o4l3/66/ooo/013/O0O9iOGl0 INVEN'TOR: Berdy&qskiy.,_,X, G.; Buritkovskiy, V. N., Bxodskiy, I. I.; Kas 'Ian, V. Kh.; Tozin, Ya. M.;,SaViin, P. V. 1,0RG; None ;TITLE: Multiple-draft mill for droxing pipe on a sh(,rt mandrel. Class 7, No. 183168 jannounced by the Dnepropetrovsk Pipe Rolling Plant imeni Lenin J.Dnepropetrovskiy Itruboprokatnyy zavod)] ~SOURCE: Izobreteniya, promyehlennyye obraztsy, toviamyye znak-i, no. 13, 1956, 9-10 ;TOPIC TAGS: metal draving, pipe, reliability ;ABSTRACT: Thi.s Author's Certificate introduces: 1. Amultiple-drE,ft mill for drawing 1pipe on a short mandrel. The unit consists of a tru.ck with a drive, unloaders, a !stand with draw plate,, a receiving table with trougEs and a unit for setting the rods ~along with the mandrels into tubes. Operational reliability is i3iproved and servicing is simplified by mounting the rods .6n a common movat-le truck and equipping them with ,spring compeni3ators. 2. A modification of this device equipped with a lever mechanism ifor each drawing unit for clamping 'tubes, and a screw arrangement for moving the ,support. Card 1/2 uD:; 621.774.372.002..5 ACC NRt 1-mmin drive$ 2-pull chain; 3-vorking tube; 6-1'ubricator; T-receiving table; 8-stand for mecbanisma; 9-rods; 10-springs CODE: 13/ SUBM DATE: 218ep64 4-truck; 5-unloader; rod 5upport Card Awb* '6tOYA4(M-'YY-,v- SHVAB, 19. 1., Inshaner; B31RDYAIfSXIT, T.N.. inshener. ' -- " ' ' Utilization of Mi-3 and XK-261 excavators for IrrilAtion and noil Improvement work, Mr. I sel. 6 no.11:36-61 1 134. Mcavating machinery) (KIRA 7:11) BEnyAnsur, V. N. Berdyanskiy, V. N. "The construction and. repair of channels with multi-bucket excavators.0 Kin Higher Zducation USSR. Tashkent Inst of Urineers of IrrieAtion and Mechanisation of Agriculture (TIIIWKH). Tashkent, 1956. (Dissertatior for the Derrep of CandidAte in TectrAcP1 Sciencel). So: Kniz ayok letopist No. 25, 1956. Moscow BIRDTANSKIT. Y.N.. insh. Instrument for registering the not opa:ratlonal timis of pumping and pump Iredging apparatus. Xekh.stroi. 14 no.6:17 Je '57. (MIRA 10:11) (Pumping machinery) (Dredging machine:!y) AUTHOR: V U., 3m ~T ne ~i r30V/ 100-5'--5-9/15 = bli i-j E ng i n e e r TITLE: ~7.'1.71in- Appnz-altuo for DraClino -.'xca-vntor.-. I al-o!;-y ekskavatorov-drajlaynov). PEPJODICjLL: Stroitpl'--tva, L95-'i, TTr 5, pp 2R-29. ABSTRACT: '-L'ile -wthoro of th~.3 nrticle d~),AL-,ned six tyT)eS of aut,,:.I~-,t]-c timin,r- al--prtratui3 lbrv3i~d on mechE..-lical, lv-'raiilic and elpetrIcal primiples. they tests carried J - 1,ut with these -voa-ious timinC apparatu c-nn-c-tod t .3 3 r- 0 draLlin,- Pxcavator proved the superiorlty of the one baced on the meclianica! prine.4.ple connected with ri -ydxau!io system of op~~rntion, Fi0ire I Illustrat:!s 'U*imin'- appnrotua roL~.5tt~rin.- tLe work of ;lie main ir , c h: it ic. br,-,).iLji' into act ion by a vn:-ve mechnniza- ~'-i,~n illuotratod in -,ic-,ure 2. The equipmont illu3trated. in Pi-arc 3 contr-)In 'Lluie. in the hydraulic slysten an,. i~~' "--'tuat' d In th-, cabin cf' the expavito.-. ]) I rj_ -n!- t-:-H.nr~t-j~i-Jminkr mechmd-m 2-5C2 was insU1116d in th,, ex- There ai:e tln-O-~ figures. Card 1/1 1. Con2tr--,ction--EqWpme,%t 2. Comr-ol systems--Appllcaticns' BERDIAW)Kly, VA.; KUPa", E,Sh,; MMAGATOV, A.Na C--.- . aluding aubourfaea draInW in the Golodnaya Step~c. Gidr.i Mel. 14 no,.3:16-22 W 162. (MB-th 15.4) 1. ImlUtut vodnykb problem 1 gidrotekhniki AN U7-9SR- (Goloduaya Staipe-Drainage) BODYANSKIY, V.N.9 inzb.; WERMAN, L&Sho,. itzh.; MLISAGATDV,, A.N., lnzh. Machan:Lzation of the oonstruction of a deep covered drain. ?bkh. stroio 19 no,7:18-19 JI 162, (HIM 15:7) (Drainage) (Pipe-layirg machinery) BERDYANE"MY, V.N.t UPEDIAN, E:.Sh.; MIRSAGATOV, A.N. Technolog- .r f the combired mechanized cc.nstruction of a closed horizontal drainage in the Golodnaya Steppe. Vop. gId!-otekh. no.25:57-68 163. (MIRA 18:2) MDYATV, A. F, PA 56/4,)T84 MR/admolm woulas, ,Infections keb*9 *dlaiae VowAs, Thempy The Preblem of Propbylaxle aM Treatment of Infected Camplications of Womas,* A. IN Bardyaqwrp Dr Ned Sol, Polyollnic, Wn of Tranap, 1 p *Khirurgiya" No 2 In rebutt,%l to V. L. Telin's artlole raccamm&ing ube oZ t,Dluldine bliw to prOTOnt 1Df~Ot1Cn8 in wounda, a-athor Introdgoes resulte of long Use of a 1% alcobol solution of pyootanin for as purpose. Dir PolyolWo, Min of Tranap: I. G. Belyayev, B]IRDTATWF A 7 q. OWPOWN-M Ad- Irogtment of surgical wounds with methyl violet as a method of proven- tion of suppurations. Milrarglia, Koskvj% no.3175 Mar 1952. (CIA ~ 22:1) 1. Doctor Medical Sciences A. F. Berdya:rov. 2. Of the Central Polyclinic of the Ministry of Wayp of Communication. BICRDTAM, L.P. (Diseases and injuries (if joints and bonito; a short guide] Belogni I p*Trozhdonlia mustavey I kestel; kratk*o sprovechmee posoble. Moskva, Modgis, 1956. 242 p. (" 9:4) (JOWS-DISUM) (13CM--DISnl,=) BMTATIT, A.I., doktor maditsinskikh nauk (Moskva) ;W method. of removing callosities. F6114. i abish. 21. noell:W~ r 156. (CALLOSIMS) (KIRA 9:12) y L , R V 'Y, -) y E- v ~ ., /?, F BIRDTATIV, A.Y. Olatkys) .4ofd"?,r -, . Diagnosis of appendicitis. Yelld. i skush. 22 no-11:11-15 3 157. (jiMINDICITIS) (KIRA 11:2) BE,RDYA'Y7FlO Yo. G.: Motor Toch Scl ((Ilsn) -- "Prccloton nnvicntlor. of sh[ps and hydropmphLc Tprovialons for it". Loningrad, 39519. 19 pp Fipller EngimorlyW Writime School im S. 0. Mkarov) (T,3',, 110 'T, I.T)Q, 101?) SEMOV, Yu.N.; SHKAKOV, G.S.; BERDYAYZVA, TA. RoIlInj,, cobalt powder into etrip. Trady LFI no.Z?2:6&70 163. (MIRA l6s7) (Powder metallurgy) (Rolling (Metalwork)) BERDYBAYEV., R.; SAYDELIDINOV, M. A valuable contribution to the trea,sure cheist of Xazakh literature. Vest. AN Kazakh. SSR 10 no.607-82 Je 162. (MIRA 150) (Feidowei) (Forsian lAterature-rranslations into Kazakh) _U, P. er~l IWIAMAULM, G. f,. - 1-1. .-- , , x , Per,lybayev. 171. P. en! '~mlagtaova, G. 1. "A c.,i--,e of do;-.e~-,tic mangf!", Zlravookhraneniye Fan'oYntteBis of Bome dminant plant spicies in the c..-uthwes tern Ky2yl KIM, BOt.2hur. 49 no.11:1571-1583 N 164. ' W RA 18: 1) k L. Institut botaniki AN Usbekskoy SSR, Tauhkent. MILOGRAWYA, Ye.%'.j BERDYKUIDV Kh.A.; KOSTINA, V.P.; KRUY.3MMEVA, R.N. Large-scale cultivation of Mlorella. U2b. biol. zhv.i-. 8 no.5: 63-66 164 (K] RA 18:2) 1. Thatitut, botaniki AN UzSSR. o ar-ilmInerril~-iOr-11 .10:1,2-45 264 1 j"(- tAy'lld i .rm." r "ozi rF "Z 5p t;~ ni it, Pt.;a sx, I jl~ z i E&RDYSHEV, A. A. ffElectrical Coriductivity an(I Magnetlc Properties of Transiticn,11 Metals.,' Cand -thys-,%th Sci, Ural State U imerl A. M. GorIkiy, Sverdlovsk, 1'j54- (YL, No 1, Jan 55) Survey of Scientific and Technical Dissertations Defended at U!SR Higher Educational Inatitutions (1;) SO: Sum. No. 556, 2). Jwi 55 AUTHORS: 413 OVI A. A. and Izyumov, Yu. A. 12E-5-3-24/31 i. TITLE: The/Excha~ift'*~;e Model for Transition Metals (K s-d- bmennoy wodeli pere'-chodnykh wetallov) o i PERIODICAL: Fizika IMetallov I Metallovedeniye, 19579 Vol 5, 1[r 3, pp 5~:,2-3 (USSR) ABST'IRACT: Li the s-d ;aodel the auom is arsumed to have several W A-clectrons, of whiea the energy operator is the first equation in the paper. The spontaneous m.~.i---netuization M is related to fit defined b;f Eq.(1), .-aiere b and c are constantr; definai in Ref.(4) (and not in the paper). if a io lar6e, M varies exponentially with T (s-d exch=,,.-.e) If a eDc while in an-,.1ferronagneti,-s 'zP1 e'ON, I. is concluded 'tw"u- the existence of a weak c;-d excharige interaction in transition m,?tals I may oxplair. the exlslonco of the difft~ren,.o betweon thri fi,:~rromagnetic (a.,1ti.ferT-omagD6t1-,) and paramagiieti-; Cuiie points :.r. transition metals- Card 3/3 There ar,~ 1 tab''Le and A'--,i raferon,-A-c, .~f which 7 are So-.-'et ri,nd 6 a.re English. ASSOCIATIONs Urallskly Gosuni-~er3ltet lineni A,M, Gor'-kogo (Ural State Uni-;6rsity A.M. Gorlkfty) SUBMITTED-, April Zrd. 19':)8 SOV/126 -7 -1-3/28 ATJTHDRS~* Berdyshev, A. A. and Shltikova, K. V. TITLE: ' On the Theory of Ant If erromagnet ism. of Transition Idetals. I. Energy Spoctrum (Ji teor.1i antiforromitpetimma. perekhodnykh n8tallov. I. Spektr energii) PERIODICAL: Fizika Metallov I Metallovedeniye, 19z)9, Vol 7, Wr 1, pp 21-28 (USMI) AbSTRACT: At present there Is no sat:L;3factory theory of anti- ferromagnotisim of transition metals. Lidiard (Ref.6) and Matsubara (Ref.8) used Slater's ideas of alternating potential In an antiferromalpietic. Hober (Ref.9) and 'Kasuya (Ref.10) employed Zener's new riechrenism of ferromagnette and ant if erroituignet ir.- bindinE; in transition metals. Both these theoril),13 provoked serious objections (Ref.11). The present authors suggest an s-d exchange model of an alit if erromagnet L(,. transition metal, similar to that used for ferromagnetlos (Hef.12). A system consisting of N ions, N "internal" d-olectrons and N conduction a-electrons, is considored. Tne present Card 1/2 paper (Part 1) deals with -the energy spectrum. It is SQV/126-7-1-3/28 On' the "'.heory of Antiferromagnetism of Transition Yetals. I shown that the oonduction band In an antiferromagnetic transition metal is -split into two sub-boands with a gap between them proportional to the magnetisation of the d-electron magnetic sub-lattice. Tho paper is entirely theoretical. Acknowladgment is made to Yu.P. Irkhi-n for h1a advice. Ther~3 are 18 referenoes, of which 4 are Soviet, 11 English, 2 Japanose and 1 Gormaii. ASSOCIATION: Urallskiy gosudarstvenny), universitar, .meni A,X# Gor1kogo (Ural State University imeni A.M. Gorlkiy). SUBRITTED: April :35, 1957. Card 2/2 240), 2,4(5) AUTHORS: Seidov, Yu. and ~e~rdsh~evA~.. SOV/126-7-2-2,5/39 TITLE: Electron-Spin Relaxation in an Antiferromagnetic (Spin-el.ektronnaya relaksats,iya v antiferromaE;netike) -F&RIODICAL: Pizika. Metallov i lAetallovedeniye, 1959, Vol 'T, Nr 2, pp 298-299 (USSR) ABSTIMT: The occurrence of tbermal equilibrium :.ii a system of Bpin waves In an antiferromagnetic metal may be due to various factors such as interaction with phonorts collisions of spin waves wit'j,,i each othir, interaction with conduction electrons The firE.t two mechanisms were considered by Tsukernik (Ref 1). The present authors have considered the i-,hird mechanism. The calculation is based on the n-d exchange model (Refs 2 iind 3). The energy operator 1 J(4 ''P + + 1l const n n )a a a n 1 2 n III'l nla2 oa2,2, 11 ,cr. exp i(k2-kl) nI(k1k2) a+ a a* a Card 1/4 nkik2 ncr 1 no D 11 lCT2k2a1 -OV/126-7-2-25/39 Electron-Spin Relaxation in an Antifer.comagnetic is transformed using Ziman's formalism (Ref 4). The notation is the same ai3 in Ref 3. For the d-electrons the usual spectrum of spin wave energies is obtained while for the a-electrons the splitting of the conduction band has already been described earlier (Ref 3). The part of the energy operator which contains triple terms in the second quantisation operators and which describes quantum transitions due to the inter- action of spin waves with conduction electrons leads to the following equation for the mean frequcncy of electron-spin relaxatio-a -1 2 JI (kl,k IV O-e. 114 f 2A Ell 11 11 4 2 4k k 1 2 2 2) IL+W)e>T. E /kT ii n 6(E E E ii It + JAIL BIL 6(k2-kl + k2 ki k2 k2- k]._ whe re n. ~ (E )/kT+ I( Card 2/4. ~exp Eit /kT-1) nk=(exT, k_~ k k2)- SOV/126-7-2-25/39 Electron-Spin Relaxation in an Antiferromagnet--c is the exchange i-ntegral for a conduction electron and a d-electron, Tis the reciprccal lattice vector, E is the energy of -a spin wave, an. d E is the energy oY a ,:conduction elet,,tron. The remaining symbols have tbe same meaning a;3 in Ref 4. Calculations of were ;,arried out in the same approximation as in the 13or-responding ferromagne-uic -.roblem (Ref 2). It turned P out-that j2K2 kE)2 12 't; 1 0 1 IN 0 zj W 11 2 2 77 2 17 27 h.A kT = 21r hz A T %here I. is the s-d exchange intefral inside oivatom, j is the exchaiiSe integral between the d-shells of neighbouring atDms, 3 is the -bermi surface ener[,;,i, A is the transport tegral for a conduc~,ion electron in a one electron theory, ON is the Neel point, and z is the number of nearest neii~hbours.,,,In a rou& -14 estinate of ldc-v one may take A -,, 10 " erG, Iol%.oo 10 erg 0 erg. It follows Card 3/4 (Ref 2), eN --.1 2.00 K and 0-12