OA?EIANUeEEE AeA?AEAAIEE OIIAA?NEOAO
Ia i?aaao ?oeiieno
O?aiiaa Oaoyia Iaaiiaia
OAeE 538.945 : 557.521.17
Noaaieueiinoue no?oeoo?e oa aeanoeainoae aiioaenieieo ieiaie
YBa2Cu3O7-o
01.04.07 – Oiceea oaa?aeiai oiea
AAOI?AOA?AO
aeena?oaoei? ia caeiaoooy iaoeiaiai nooiaiy
eaiaeeaeaoa oiceei- iaoaiaoe/ieo iaoe
Oa?eia – 1998
Aeena?oaoeiy ? ?oeiienii.
?iaioa aeeiiaia a Oa?eianueeiio aea?aeaaiiio iieioaoii/iiio
oiiaa?neoaoi Iiiinoa?noaa inaioe Oe?a?ie
Iaoeiaee ea?iaiee: aeieoi? oic.-iao. iaoe, i?ioani?
Oaaei?aiei Aiaoieie Iaaiiae/ (caa.
eaoaae?ith oiceee iaoaeia i iaiiai?iaiaeieeia Oa?eianueeiai aea?aeaaiiai
iieioaoii/iiai oiiaa?neoaoo).
Ioioeieii iiiiaioe aeieoi? oic.- iao. iaoe , i?ioani?
Iaieainueeee Ieoaeei Ieaenaiae?iae/
(caa.eaoaae?ith iecueeeo oaiia?aoo? Oa?eianueeiai aea?aeaaiiai
oiiaa?neoaoo).
aeieoi? oic.- iao. iaoe, aeioeaio
Iaiaeoe Aiae?ie Ieaenaiae?iae/
(i?ioani? eaoaae?e caaaeueii? oa aenia?eiaioaeueii? oiceee
Oa?eianueeiai aea?aeaaiiai iieioaoii/iiai oiiaa?neoaoo).
I?iaiaeia onoaiiaa: Oiceei- oaoii/iee iinoeooo iecueeeo oaiia?aoo? IAI
Oe?a?ie, i. Oa?eia (aiaeaeie no?oeoo?ieo aeineiaeaeaiue oaa?aeeo oie i?e
iecueeeo oaiia?aoo?ao).
Caoeno aiaeaoaeaoueny “__12__” _aa?aciy_1999_ ?. i _14:00__ aiaeeii
ia caniaeaiii niaoeiaeiciaaii? a/aii? ?aaee Ae 64.051.03 o Oa?eianueeiio
aea?aeaaiiio oiiaa?neoaoi (310077, i. Oa?eia, ie. Naiaiaee, 4,
aoae. ii. E.Ae.Neiaeueieeiaa).
C aeena?oaoei?th iiaeia iciaeiieoeny o Oeaio?aeueiie iaoeiaie
aiaeiioaoei OAeO.
Aaoi?aoa?ao ?icineaii “__04____” ethoiai 1999_ ?.
A/aiee nae?aoa?
niaoeiaeiciaaii? ?aaee
A.I. Iieaea15
CAAAEUeIA OA?AEOA?ENOEEA ?IAIOE
Aeooaeueiinoue oaie
Aiaee?eooy yaeua aenieioaiia?aoo?ii? iaaei?iaiaeiinoi iaaeaei
iiaeeeainoue ia?aaeyiooe ia?niaeoeae i?aeoe/iiai canoinoaaiiy
iaaei?iaiaeieeia o anio aaeocyo iaoee i oaoiiee. ?o i?aeoe/ia
aeei?enoaiiy oinii iia’ycaii c oei, ui yaey? niaith iaaei?iaiaeiee
iiiie?enoae, iieie?enoae aai oiieo ieiaeo. Oae o aaeoci neaaino?oiiai?
aeaeo?iiiee aeey aeaioiaeaiiy iaaiioiiao?ia ia iaaei?iaiaeieo eaaioiaeo
iioa?oa?iiao?ao (IEAIAeao), aeaeo?iiieo aeniei/ooeeaeo (A*) i?eeaaeia,
iaaeaeniei/anoioieo (IA*) – ?aciiaoi?ia, aioaiieo a?aoie, ae?aiia aeey
iaaiioiiai caoenoo oa ?iciiiaiioieo aeao/eeia ia?niaeoeaiei ?
canoinoaaiiy iaaei?iaiaeieo aiioaenieieo ieiaie YBa2Cu3O7-o oiaueiith
200- 1000 ii. Iaeaieueo aeioeieueiei iiaei a aooe canoinoaaiiy oaeeo
i?eno?i?a, ?ic?iaeaieo c aeei?enoaiiyi aeacaieo ieiaie (ia’?eoia) a
yeinoi aeaiaioii? aace ye iacaiiiai ?aaeiiaeaeo?iiiiai iaeaaeiaiiy oae i
einii/ieo eioaeueieo aia?aoia i eiino?oeoeie.
I?ioa, oni AOII – iaoa?iaee, o oiio /enei i aeacaii ieiaee noeeueii aei
ao?aoe aenieeo aeaeo?ioice/ieo oa?aeoa?enoee i?e o?eaaeiio caa?iaaiii oa
aenieoaoaoei? a oiiaao aei? ?iciiiaiioieo /eiiieeia iaaeieeoiueiai
na?aaeiaeua, oaeeo ye: aaeooi, ii?iiiithaaiiy iioieaie iiiia, i?ioiiia
oa aeaeo?iiia, AOO- oa iioi aeaeo?iiaaiioii aei?iiiithaaiiy, ui
ia?aoeiaeaea? ?o oe?ieiio canoinoaaiith ia i?aeoeoei.
Aca?iica’ycie iiae e?enoaei/iith no?oeoo?ith, noaoiiiao?e/iinoth neeaaeo
i iaaei?iaiaeieie oa?aeoa?enoeeaie aea/aia, a iniiaiiio, aeey
iiiie?enoaeia aenieioaiia?aoo?ieo iaaei?iaiaeieo niieoe YBa2Cu3O7-x. Ia
iiaenoaai no/aniiai ?iaiy oai?aoe/ieo ciaiue uiaei aenieioaiia?aoo?ieo
iaaei?iaiaeieeia iaiiaeeeai aeinoiai?ii ci?iaiicoaaoe oa?aeoa? ciii
no?oeoo?e oa aeanoeainoae oiieiieiaeiaiai AOII ia’?eoo a ?aaeueieo
oiiaao eiai canoinoaaiiy. Nenoaiaoe/ii aeineiaeaeaiiy aca?iica’yceo iiae
iniaeeainoyie e?enoaei/ii? no?oeoo?e i oa?aeoa?ii aeaa?aaeaoei?
iaaei?iaiaeieo aeanoeainoae aiaenooii. Iaaaaeaii aeua aeaii naiae/aoue,
ui aenia?eiaioaeueii aeineiaeaeaiiy, iia’ycaii c i?iaeaiith noai?aiiy
iaaei?iaiaeieo aiioaenieieo ieiaie nenoaie Y- Ba- Cu- O, aeineiaeaeaiiyi
?o e?enoaei/ii? no?oeoo?e i?e o?eaaeiio caa?iaaiii, a oaeiae
aenieoaoaoei? a oiiaao iacaiii? aei? ?aaeiaoeieiiai aei?iiiithaaiiy oa
/eiieeia IEI ? aeooaeueieie aeey iiooeo iiaeeeainoae iiaeaeuaiiy
noaaieueiinoi oiieeo ieiaie YBa2Cu3O7-x.
Ca’ycie ?iaioe c iaoeiaeie i?ia?aiaie, ieaiaie, oaiaie
Aeena?oaoeiy aeeiiaia ia eaoaae?i oiceee iaoaeia i iaiiai?iaiaeieeia
Oa?eianueeiai aea?aeaaiiai iieioaoii/iiai oiiaa?neoaoo i aoiaeeea a IAe?
eaoaae?e ca oaeeie oaiaie: “Oai?aoe/ia oa aenia?eiaioaeueia ?ic?iaea i
eiiieaenia aea/aiiy iiaeo aeiaaiai/ieo ooieoeiiiaeueieo ieiaeiaeo
iaoa?iaeia c oiieaeueieie oice/ieie aeanoeainoyie aeey aeei?enoaiiy a
yeinoi aiaeiiaiaeaeueieo yeaiaioia i?eeaaeia i i?eno?i?a iiaioiuei?
oaoiiee” (caoaa?aeaeaia iaeacii Iiiinaioe Oe?a?ie ?78 aiae 21.03.91, ?
aea?ae?a?no?aoei? 0193V027850); “?ic?iaea oa ?icaeoie iaoiaeia
noai?aiiy, aeineiaeaeaiiy AOII ieiaie, aea/aiiy caeiiiii?iinoae
oi?ioaaiiy oaciaiai neeaaeo, no?oeoo?e oa aeanoeainoae aeey ?icoe?aiiy
?o ooieoeiiiaeueieo iiaeeeainoae” (caoaa?aeaeaia iaeacii Iiiinaioe
Oe?a?ie ?78 aiae 21.03.91 ? aea?ae?a?no?aoei? 0193V027856); Io?eiaiiy oa
aeineiaeaeaiiy ieiaeiaeo, oieueaiaeo i ianeaieo AOII iaoa?iaeia c
aenieeie e?eoe/ieie oa?aeoa?enoeeaie aeey ooai?aiiy aeaiaioii? aace
e?iiaeaeo?iiiee” (caoaa?aeaeaia iaeacii OAeIO ?360-II aiae 3.03.94 ?
aea?ae?a?no?aoei? 0194V044257).
Iaoa i caaea/i aeineiaeaeaiiy
Iaoith aeaii? ?iaioe aoei noai?aiiy aiioaenieieo ieiaie
aeneioaiia?aoo?iiai iaaei?iaiaeieea YBa2Cu3O7-o, c’ynoaaiiy nooi
no?oeoo?ieo ia?aoai?aiue, yei caeieniththoueny iiae /an ?o o?eaaeiai
(oa?iiiii aei 3,5 ?ieia) caa?iaaiiy ia iiaio?i, aea/aiiy caeiiiii?iinoae
aei? IEI i oaeeo iiaeaethth/eo eiai oaeoi?ia ye: aoiia?iee eenaiue, AOO-
ii?iiiithaaiiy oa iiieaioaoeiy iiiia He+ ia aeaeo?ioice/ii aeanoeainoi
aeineiaeaeaieo ia’?eoia.
Aeey aeinyaiaiiy iinoaaeaii? iaoe iaiaoiaeii aoei iineiaeiaii ?ica’ycaoe
ianooiii caaea/i:
– ae?inoeoe aiioaenieii ieiaee YBa2Cu3O7-x oiaueiith ~200 ii c ?iciei
?iaiai aeineiiaeinoi ia iiaeeeaaeeao SrTiO3;
– ?ic?iaeoe iaoiaeeeo aecia/aiiy aiinoo eenith (eeniaaee iiaeaen 7-o) o
a?aooei YBa2Cu3O7-o ca aaee/eiaie ia?iiaeia e?enoaei/ii? a?aoee,
a?aoiaoth/e iai?oaeaiee noai oiieeo ieiaie;
– i?iaanoe ?aioaaiioaiciiao?e/ii aeineiaeaeaiiy aeoiaeieo c?aceia i
aecia/eoe ?oii ia?iiaee e?enoaei/ii? a?aoee, nooiaii ?o
iae?iaeaoi?iaoeie oa ?o eeniaaee iiaeaen;
– c’ynoaaoe, /e inio? ei?aeyoeiy iiae no?oeoo?iei noaiii, aiinoii eenith
i iaaei?iaiaeieie aeanoeainoyie (Oni, One, O) aeacaieo ieiaie o
aeoiaeiiio noaii;
– anoaiiaeoe caeiiiii?iinoi no?oeoo?ieo ia?aoai?aiue, ia?a?iciiaeieo
eenith oa ciiie aeanoeainoae ieiaee a caeaaeiinoi aiae aeineiiaeinoi ??
no?oeoo?e, a naia, aiae ?icii?o aeieia oa eooia ?o ?ici?i?ioaoeie iiae
aieeaii /eiieeia iaaeieeoiueiai na?aaeiaeua;
– anoaiiaeoe iaeaieueo ai?iaiaeii iaoaiicie aeaa?aaeaoei? no?oeoo?e oa
aeaeo?ioice/ieo aeanoeainoae c iaoith c’ynoaaiiy iiaeeeainoi
aiaeiiaeaiiy ?o iaaei?iaiaeieo aeanoeainoae oeyoii aeeoocieiiai
iane/aiiy eeniai oiieiieiaeiaeo ia’?eoia YBa2Cu3O7-o .
– aeineiaeeoe aieea oaeoi?ia IEI ia noaaieueiinoue oa aeaa?aaeaoeith
no?oeoo?e oa aeaeo?ioice/ieo aeanoeainoae aiioaenieieo ieiaie
YBa2Cu3O7-x .
Iaoeiaa iiaecia iaea?aeaieo ?acoeueoaoia
1. Aia?oa anoaiiaeaii, ui a aiioaenieieo ieiaeao YBa2Cu3O7-o // SrTiO3
oiaueiith 0,2 i 1 iei i?e aeineoue aenieiio eeniaaiio iiaeaeni (7-o ~
0,9) i aenieeo aeaeo?ioice/ieo aeanoeainoyo- Oni = 89,7 E; One = 87 E;
O= 1,5 E; jn ~ 106 A/ ni2 aaee/eia i?oi?iiai/iinoi a?aoee, aeyaeaia ca
aeiiiiiaith ?aioaaiianueei? aeeo?aeoei?, ? o eieueea ?acia iaioith, iiae
o ianeaieo iiiie?enoaeao. Oeae aoaeo iia’ycaii c eiaa?aioiei
?icnithaaiiyi ?aioaaiianueeiai aei?iiiithaaiiy aiae aeaieieeia iaeiai
?icii?o ( 8 ii), yei oi?iothoueny iiae /an oao?a- i?oi ia?aoai?aiiy
aianeiaeie aiioaeniaeueiiai oa?aeoa?o niieo/aiiy iiae ieiaeith oa
iieeaaeeith.
2. Aia?oa cai?iiiiiaaia iaoiaeeea aecia/aiiy eeniaaiai iiaeaeno ca
aeaieie i?aoeecieii? ?aioaaiianueei? aeeo?aeoiiao?i?. Iaoiaeeea
a?oioo?oueny ia ?icaeieaiii aianeia iai?oaeaiiai noaio aiioaenieieo
ieiaie i aiinoo eenith o ciiio aaee/ei a, b, c ia?aiao?ia e?enoaei/ii?
a?aoee.
3. Aia?oa anoaiiaeaii, ui ieiaeiai c?acee c ?icii?ii aeieia 77 E ieiaie YBa2Cu3O6,5, ui
aeeeeea? ?o ia?aoiae o iaaei?iaiaeiee noai i?e O> 77 E.
I?aeoe/ia cia/aiiy iaea?aeaieo ?acoeueoaoia
?ic?iaeaia iaoiaeeea aeaioiaeaiiy aenieiyeinieo ieiaie YBa2Cu3O7-x ia
iiaeeeaaeeao SrTiO3, NdGaO3 oa LaAlO3 i aecia/aii iaaei noaaieueiinoi
YBa2Cu3O7-x // SrTiO3 i?e i?e?iaeiiio noa?iiii. C’yniaaii eieueeinii
ia?aiao?e aieeao aeineiiaeinoi no?oeoo?e ia ciiie aeaeo?ioice/ieo
oa?aeoa?enoee YBa2Cu3O7-x i?e i?e?iaeiiio noa?iiii. Cai?iiiiiaaii niinia
aiaeiiaeaiiy iaaei?iaiaeieo oa?aeoa?enoee ieiaie ia ii/aoeiaeo aoaiao
aeaa?aaeaoei?. Aenia?eiaioaeueii iiaeoaa?aeaeaia iiaeeeainoue
aenieoaoaoei? ieiaie YBa2Cu3O7-x a oiiaao iaaeieicaiiiai einii/iiai
i?inoi?o.
Iniaenoee aianie caeiaoaa/a
Aaoi? aaciina?aaeiuei a?aea o/anoue o aeaioiaeaiii ieiaie YBa2Cu3O7-x,
i?iaaea ?aioaaiianueei aeeo?aeoeieii oa oiiia?aoi/ii aeineiaeaeaiiy
c?aceia i ia?iaeo aenia?eiaioaeueieo aeaieo; ?ic?iaeea iaoiaeeeo
aecia/aiiy aiinoo eenith, yea a?aoiao? iai?oaeaiee noai aeineiaeaeaieo
ieiaie; a?aea o/anoue o aiaeici oa ocaaaeueiaiii io?eiaieo ?acoeueoaoia;
aiooaaea iaoa?iaee aei ioaeieaoei?.
Ai?iaaoeiy ?acoeueoaoia aeenna?oaoei?
?acoeueoaoe ?iaioe aeiiiaiaeaeeny i iaaiai?thaaeeny ia oaeeo
eiioa?aioeiyo: III Ananithcia eiioa?aioeiy “Oeceea ieenieo ieiaie”
Iao?icaaiaenuee, 1991 ?.; “Aeiy oaeoi?ia einii/iiai i?inoi?o ia
iaoa?eaee i einie/ii aia?aoe”, i. Oa?ueeia 1993?.; II Iiaeia?iaeia
eiioa?aioeiy “Iaoa?iaeiciaanoai aenieioaiia?aoo?ieo iaaei?iaiaeieeia”,
i. Oa?ueeia 1995 ?.; Iiaeaaeocaaiio iaoeiai- i?aeoe/iiio naiiia?i
“Aaeooiia iaoaeicaoeey”, i. Oa?ueeia, 1996 ?.
Ioaeieaoei? Ca oaiith aeena?oaoei? iioaeieiaaii 8 ae?oeiaaieo i?aoeue. C
ieo 4 noaooi o oaoiaeo iaoeiaeo aeo?iaeao i 4 oace aeiiiaiaeae ia
eiioa?aioeiyo.
No?oeoo?a e ianya ?iaioe Aeena?oaoeiy neeaaea?oueny ic anooio, 6
?icaeieia, aeniiaeia i nieneo aeei?enoaieo eioa?aoo?ieo aeaea?ae c 124
iaeiaioaaiue. Aiia iinoeoue 115 noi?iiie, aeeth/ath/e 9 oaaeeoeue i 31
iaethiie.
INIIAIEE CIINO ?IAIOE
Anooi iinoeoue iaa?oiooaaiiy aeooaeueiinoi oaie, aecia/aiiy iaoe i
caaea/ ?iaioe, iaaiai?aiiy iaoeiai? iiaecie iaea?aeaieo ?acoeueoaoia oa
?o i?aeoe/ia cia/aiiy, oi?ioethaaiiy iniiaieo iaoeiaeo ?acoeueoaoia.
Ia?oee ?icaeie i?enay/aiee iaeyaeo eioa?aoo?e. Iienaia e?enoaei/ia
no?oeoo?a, oa?aeoa?ii aeaoaeoe a ieiaeao YBa2Cu3O7-x i aieea
aeineiiaeinoi no?oeoo?e ia iaaei?iaiaeii aeanoeainoi. ?icaeyiooi
i?iaeaie oa?iiaeeiaii/ii? noieeinoi oa oiiae iiaeeeaiai niiainioaaiiy
oao?aaiiaeueii? oa i?oi?iiai/ii? iiaeeoieaoeie YBa2Cu3O7-x, a oaeiae
ioeiiee eiioeaio?aoei? eenith oa eiai ?ooeeainoi a oeeo iaoa?iaeao.
I?iaaaeaii aiaeic iayaieo eioa?aoo?ieo aeaieo i?i oiceei- oiii/ii
i?ioeane, ui aiaeaoaathoueny i?e aeaa?aaeaoei?. Iieacaii, ui ia
nueiaiaeii aiioaenieii ieiaee ia iniiai YBa2Cu3O7-x aea/aii ua
iaaeinoaoiuei i iaia? iiaiiai ?icoiiiiy aca?iica’yceo iiae ?o neeaaeii,
eeniaaei iiaeaenii, iaaeineiiaeinoth no?oeoo?e i iaaei?iaiaeieie
aeanoeainoyie. Aei oiai ae ua ia anoaiiaeaii caeiiiii?iinoi ciiie
aeacaieo oa?aeoa?enoee iiae aieeaii iani?eyoeeaeo oaeoi?ia
iaaeieeoiueiai na?aaeiaeua.
O ae?oaiio ?icaeiei iienaii iaoiaeeee aenia?eiaioia. Ieiaee YBa2Cu3O7-x
oiaueiith ~ 0,2 iei oi?ioaaee ca iaoiaeii iioa?iaiai inaaeaeoaaiiy Y,
BaF2 i Cu o aaeooii ia ieae/a 10-4 -10-5 Ia ia iiaeeeaaeee (001)SrTiO3 c
ianooiiei aiaeiaethaaiiyi o iioioei eenith i?e oaiia?aoo?ao 1123 E i 723
E. Iaoiae caaacia/oaaa niiaaiaeiioaiiy ca iaoaei/ieie eiiiiiaioaie ic
oi/iinoth aei 0,5 ao.%.
Aeaeo?ioice/ii oa?aeoa?enoeee eiio?iethaaee eiioaeoiei oa aaceiioaeoiei
iaoiaeaie. AOO- ii?iiiiaiiy c?aceia i?iaiaeeee o aoiinoa?i c
ia?oeiaeueiei oeneii eenith ~ 2 Ia a iaeanoi aeiaaeei oaeeue 110-200 ii
ca aeiiiiiaith aiaeiaai? eaiie oa ia iiaio?i a iaeanoi aeiaaeei oaeeue
>110 ii ca aeiiiiiaith aa?’??ii? eaiie oeio AA?. Iiieaioaoeith iiiia He+
i?iaiaeeee ca aeiiiiiaith i?eaiiaeueii? onoaiiaee, noai?aii? ia iniiai
iann- niaeo?iiao?a IE 1305. Aeniiioaaiiy c?aceia o IEI caeienithaaeiny
ia iiaa?oii i?aioaeueii? noaioei? “II?” o niaoeiaeueieo eanaoao.
Ia?aiao?e e?enoaei/ii? a?aoee, ia iniiai yeeo i?iaiaeeee ia/eneaiiy
aaee/ei nooiaith iae?iaeaoi?iaoei? i eeniaaiai iiaeaeno c?aceia,
aecia/aeeny ca iaoiaeaie i?aoeecieii? ?aioaaiianueei? aeeo?aeoiiao?i?.
Iaoiaeeea aecia/aiiy eeniaaiai iiaeaeno a?oioo?oueny ia ?icaeieaiii
aianeia iai?oaeaiiai noaio aiioaenieieo ieiaie i aiinoo eenith o ciiio
aaee/ei a, b, c ia?aiao?ia e?enoaei/ii? a?aoee.
Ic oai?i? ?aioaaiianueei? oaiciiao?i? aiaeiii, ui aeey ieineiai
iai?oaeaiiai noaio iniothoue niiaaiaeiioaiiy, yei iia’ycothoue aaee/eio
iae?iaeaoi?iaoei? i ia?aiao?e a?aoee. O aeiaaeeo aeineiaeaeaieo ia’?eoia
ia?aiao?e a?aoee caeaaeaoue ye aiae aiinoo eenith, oae i aiae aaee/eie
iae?iaeaoi?iaoeie i iai?oaeaiee noai ieiaie iiaea aooe iienaiee ca
aeiiiiiaith nenoaie ?iaiyiue:
aea – aaee/eia iae?iaeaoi?iaoei? o ieiueii ieiaee, – eiaoioeiaio
Ioaniia.
C iaaaaeaii? nenoaie ?iaiyiue iiaeia aecia/eoe i o. O aeiaaeeo
aeineiaeaeaieo ieiaie, a?aoee yeeo ? neaaei i?oi?iiai/ieie, ui iaaeieii
iiaeoaa?aeaeothoue aeaii ?aioaaiia?aoi/ieo aeineiaeaeaiue, aaee/eio a
iaiiaeeeai aenia?eiaioaeueii aecia/eoe ie?aii aiae b. Ie?ii oiai, ca
eioa?aoo?ieie aeaieie aeey caeaaeiinoae n(o), a(o) i b(o) aaee/eia
(a+b)/2 iaeaea ia ciiith?oueny i?e aa?ithaaiii o. Oiio aeey ?ic?aooieia
iiaea aooe aeei?enoaia aenia?eiaioaeueii aeii?thaaia aaee/eia (a+b)/2 i
ca iath iiaea aooe ioeiiaia aaee/eia iae?iaeaoi?iaoei? ieiaie. Aeey ??
?ic?aooieo o ?iaioi cai?iiiiiaaia ianooiia oi?ioea:
,
aea ((a+b)/2)e – aenia?eiaioaeueia cia/aiiy; ((a+b)/2)t – oai?aoe/ia
cia/aiiy, aiaeiia ic eioa?aoo?ieo aeaea?ae. Oiaei 2 = i ni?aaaeiie
ia?aiao? a?aoee: ci = cy+ cy . Ca aaee/eiith ni aaea iiaeia iaaeieii
aecia/eoe cia/aiiy o. Iiaoaeiaaia ca oeeie aeaieie caeaaeiinoue
oaiia?aoo?e ia?aoiaeo ieiaee o iaaei?iaiaeiee noai aiae aiicoo eenith o
ieo (On(o)) aeia?a ocaiaeaeo?oueny ic aiaeiieie ic eioa?aoo?e
caeaaeiinoyie, io?eiaieie ?aiioa aeey iiiie?enoaeia.
A o?aoueiio ?icaeiei “Aca?iica’ycie iiae e?enoaei/iith no?oeoo?ith,
aiinoii eenith oa iaaei?iaiaeieie aeanoeainoyie aiioaenieieo ieiaie
YBa2Cu3O7-o o aeoiaeiiio noaii“ iaaaaeaii ?acoeueoaoe aoanoaoei?
iiaeeeaaeie i aeineiaeaeaii aeoiaeiee noai ieiaie. Aea/aii aieea ?icii?o
aeieia ieiaee oa ?ici?i?ioaoeie iiae ieie ia no?oeoo?o i aeaeo?ioice/ii
oa?aeoa?enoeee. Aiaeic ?acoeueoaoia ?aioaaiianueei? aeeo?aeoei? i
oiiia?aoi? naiae/eoue i?i aiioaenieiee ?ino ieiaie, a oaeiae
ianeiaeoaaiiy ieiaeith ?icii?o i ?ici?i?ioaoeie aeieia i o?aaiaioia
iiaeeeaaeee. Aeei?enoiaoaaeeny iiaeeeaaeee SrTiO3 ?icii? aeineiiaeinoi c
eooaie aeaci?i?ioaoeie aeieia i o?aaiaioia iiaeeeaaeee [100] ~ 7-150 e
[100] 1 oaeaeoa iane/othoueny eeniai aianeiaeie
iayaiinoi aaeeei? eieueeinoi oeyoia eaaei? aeeooci? o iai?yieo ii?iaei
aei aaciaeo ieiuei, oaeeo ye iaaei aeieia i o?aaiaioia, a oaeiae
nooo?ai? ?icieoei iiae eiaoioei?ioaie aeeooci? o aaciaie ieiueii i o
ia?iaiaeeeoey?iiio aei ia? iai?yieo.
Ca aeaieie ?aioaaiino?oeoo?iiai aiaeico AOII ieiaee YBa2Cu3O7-x c
eeniaaei iiaeaenii 6,85, ui aiaeiiaiaea? aaeeeie i?oi?iiai/iinoi (b-a)/a
~ 0,018 a ianeaiiio noaii, iathoue niaoeeoi/io iniaeeainoue, yea iieyaa?
a neaaeiio i?iyaeaiii i?oi?iiai/iinoi (b-a)/a ~ 0,003. AOII
oa?aeoa?enoeee i?e oeueiio aeineoue aeniei (Oni = 89,7 E; One = 87 E; O
= 1,5 E; jc (77E) ~ 106 A/ni2). Aecia/aii, ui oaeee neaaeee nooiiiue
aeyaeaii? ca aeiiiiiaith ?aioaaiianueei? aeeo?aeoei? i?oi?iiai/iinoi
iathoue oaeiae ieiaee, aeaioiaeaii ca oaoiieiai?th iaaiao?iiiiai
?icieeaiiy, a oie /an ye aeey AOII ieiaie, noi?iiaaieo eaca?iei
aeia?iaoaaiiyi, aaee/eia i?oi?iiai/iinoi (b-a)/a ~ 0,002. Anoaiiaeaii,
ui iaea?aeaia ca aeiiiiiaith ?aioaaiianueei? aeeo?aeoei? nooiiiue
i?oi?iiai/iinoi o oiieeo aiioaenieieo ieiaeao iaoiiaeaia oi?ioaaiiyi
aeaieieeia iaeiai ?icii?o (~ 8 ii) o i?ioeani aiioaenieii?
e?enoaeicaoei? ieiaee.
Anoaiiaeaii, ui ?iciiaeie neeaaeiaeo aeaiaioia o aeoiaeieo c?aceao ca
aeaieie ?aioaaiianueeiai iie?iaiaeico aiaeiiaiaea? noaoiiiao?e/iiio
neeaaeo 1:2:3. Aiaeoeeaiiy aiae noaoiiiao?i? iiaeeeai eeoa ia iaaeao
aeieia oa o?aaiaioia ieiaee YBa2Cu3O7-x. Cinoaaeaiiy ?acoeueoaoia
no?oeoo?ieo aeineiaeaeaiue ic aeaieie aeii?thaaiue aeaeo?ioice/ieo
oa?aeoa?enoee iieacothoue, ui iaeaieueo aeaoaeoio no?oeoo?o, iaeaieueoo
uieueiinoue aeeneieaoeie i iaeaieueoo oe?eio ia?aoiaeo O ~ 7 E, a ioaea
i iaiaeii?iaeiinoue ca eeniai oa aeaiaioaie iaoaeia iathoue ieiaee ic
iaeaieueoith aeaci?i?ioaoei?th aeieia oa o?aaiaioia (aei 15). O ?icaeiei
oaeiae iaa?oioiaaia iaaaeueia iaiaoiaeiinoue canoinoaaiiy aeineiiaeeo
iiaeeeaaeie aeey io?eiaiiy ieiaie YBa2Cu3O7-o, ui caaacia/eoue ?o
iaee?aui no?oeoo?ii oa iaaei?iaiaeii oa?aeoa?enoeee.
*aoaa?oee ?icaeie “Ciiie no?oeoo?e oa aeaeo?ioice/ieo aeanoeainoae
aiioaeniaeueieo ieiaie YBa2Cu3O7-x i?e o?eaaeiio caa?iaaiii ia iiaio?i”
i?enay/aiee c’ynoaaiith i?ioeania, ui i?ioiaeyoue i?e i?e?iaeiiio
noa?iiii o oiieiieiaeiaeo no?oeoo?ao YBa2Cu3O7-x // SrTiO3 c ?iciei
nooiaiai aeineiiaeinoi. Ia iiaenoaai aeaieo i?i ciiie no?oeoo?ieo i
aeaeo?ioice/ieo ia?aiao?ia cai?iiiiiaaii iaoaiici aeaa?aaeaoei?
iaaei?iaiaeieo oa?aeoa?enoee ieiaie YBa2Cu3O7-x.
Oeae iaoaiici aeeth/a? aiaeiiee aoaeo oiii/ii? aeaa?aaeaoei?, i?iyaii
yeiai ? oi?ioaaiiy iaoiaiai iai?iaiaeiiai oa?o ia iiaa?oii ieiaie iiney
caa?iaaiiy i?e O~ 300 E i?ioyaii 0,5 ?ieo77E, iiney /ioe?ueio aiaeei AOO- ii?iiiiaiiy o iiaio?i eeniaaee
iiaeaen caieueoeany ia 0,04, aea oeueiai aeyaeeiny ua ia aeinoaoiuei
aeey caaacia/aiiy iaaei?iaiaeiiai noaio aeua aiae 77 E. O?eaaea (~38
aiaeei) AOO- ii?iiiiaiiy o aoiinoa?i eenith c ia?oeiaeueiei oeneii ~ 2Ia
ni?e/eith? c?inoaiiy aiinoo eenith, aaee/eia (7-o) ciiith?oueny aiae
6,62 aei 6,82, ui noi?iaiaeaeo?oueny ia?aoiaeii o iaaei?iaiaeiee noai
i?e O = 78 E.
O ?icaeiei 6 “Noaaieueiinoue no?oeoo?e oa aeaeo?ioice/ieo aeanoeainoae
aiioaeniaeueieo ieiaie YBa2Cu3O7-o i?e iaoo?iiio aeniiioaaiii o IEI”
iieacaia iiaeeeainoue caa?iaaiiy iaaei?iaiaeiiai noaio i?e aeniiioaaiii
a IEI oa?iiiii aei iaeiiai ?ieo.
Iaoo?ia aeniiioaaiiy o IEI ni?e/eiy? aeaa?aaeaoeith iaaei?iaiaeieo
aeanoeainoae. Oei ciiie o?ioe iaiueoi, iiae i?e caa?iaaiii o iacaiieo
oiiaao. Nooiiiue aeaa?aaeaoei? aai noieeinoue aiioaeniaeueieo ieiaie
YBa2Cu3O7-o o IEI oaeiae nooo?ai aecia/a?oueny aeaoaeoiinoth no?oeoo?e i
iniaeeai oa?aeoa?enoeeaie iaae aeieia oa o?aaiaioia. Aeniiioaaiiy o IEI
i?ioyaii ?ieo ni?e/eiy? cieaeaiiy One ia 5 E, iiaeaeuaiiy O ia 1,3 E
aeey ieiaie c ?aci?i?ioaoeiyie ~ 150 i cieaeaiiy One ia 2 E i
iiaeaeuaiiy O ia 0,5 E aeey ieiaie c ?aci?i?ioaoeiyie~ 70. O c?aceo-
naiaeeo, ui aeniiioaaany i?ioyaii oaeiai ae /ano o iacaiieo oiiaao, One
cieceeanue ia 5 E, a O iiaeaeueeanue ia 3,6 E. Ii?iiiiaiiy i?ioiiaie
niiy/iiai aio?o, iaaiaath/ei iioieii aoiia?iiai eenith oa aaeooiiei
oeueo?aoiieaoii ni?ey? aeeooci? eenith ona?aaeeio AOII- iaoa?iaeo,
eiiiainoth/e eiai ao?aoo aianeiaeie iecueeiai ia?oeiaeueiiai oeneo ~
10-4 Ia o aoiinoa?i IEI, ui i?eaiaeeoue aei cieaeaiiy oaeaeeinoi
aeaa?aaeaoei?.
O aeniiaeao iiaenoiiaaii iniiaii ?acoeueoaoe, yei iaea?aeaii a ?iaioi:
1. Aeey aenieioaiia?aoo?ieo iaaei?iaiaeieo aiioaenieieo ieiaie
YBa2Cu3O7-x, ae?iuaieo ca aeiiiiiaith aaaaoioa?iai? oaoiieiai? iaianaiiy
oa?ia ia iiaeeeaaeeao SrTiO3 c ?iciith ?aci?i?ioaoei?th aeieia 0,1 [001]
1 i o?aaiaioia 7[001]15 aiaeiinii ii?iaei aei iiaa?oii, c’yniaaii aieea
nooiaith aeineiiaeinoi ?o e?enoaei/ii? no?oeoo?e oa eeniaaiai iiaeaeno
(7-o) ia i?ioeane aeaa?aaeaoei? aai iie?auaiiy ?o aeanoeainoae a oiiaao
?o caa?iaaiiy ia iiaio?i a aeineiaeieoeueeeo eaai?aoi?iyo,
iaaeieicaiiiai einii/iiai i?inoi?o oa i?e aei? ie?aieo eiai oaeoi?ia:
AOO- oa iiiiiai ii?iiiiaiiy. O yeinoi ia?aiao?ia, yei oa?aeoa?ecothoue
aeaa?aaeaoeith AOII ieiaie, aea?aii ciiie eeniaaiai iiaeaeno,
oaiia?aoo?e eiioey One oa ii/aoeo Oni iaaei?iaiaeiiai ia?aoiaeo, oe?eie
ia?aoiaeo O, a oaeiae aaee/eie e?eoe/iiai no?oio jn. Aeineiaeaeaii
oaeiae ciiie aonoeie aeeneieaoeie i iae?iaeaoi?iaoei? o nenoaii “ieiaea-
iiaeeeaaeea”.
2. Iaeaieueo aeaoaeoio no?oeoo?o oa iaeaieueoo oe?eio ia?aoiaeo O~ 7 E,
a ioaea i iaiaeii?iaeiinoue ca eeniai o aeoiaeiiio noaii iathoue
iaaei?iaiaeii ieiaee c iaeaieueoith ?aci?i?ioaoei?th o?aaiaioia ~ 15.
Aeey ieiaie ic iaiueoith ?aci?i?ioaoei?th aeieia ~1 oe?eia
iaaei?iaiaeiiai ia?aoiaeo caeaaeeoue aiae aonoeie aeeneieaoeie, yea
aecia/a?oueny ca iiaoe?eiith eiii? (00L).
3. Anoaiiaeaii, ui i?oi?iiai/iinoue no?oeoo?e neaaei aeyaey?oueny i?e
aea/aiii ?aioaaiiaeeo?aeoeieieo ea?oei aianeiaeie iaeiai ?icii?o
aeaieieeia (~8 ii), yeee iaoiiaeaiee aiioaeniaeueiei oa?aeoa?ii ?inoo
ieiaie YBa2Cu3O7-o. Oaeee iaeee ?icii? aeaieieeia, ia aiaeiiio aiae
eiioeaio?aoei? eenith, ia ? e?eoe/iei ia?aiao?ii aeey ao?aoe AOII
aeanoeainoae aeineiaeaeaieo ieiaie.
4. Aeey c?aceia c ?icieie nooiaiyie aeineiiaeinoi e?enoaei/ii? aoaeiae
oa eeniaaeie iiaeaenaie (6,80- 6,96) o i?ioeani caa?iaaiiy a aoiinoa?ieo
oiiaao oa?iiiii 3,5 ?ieo caeienith?oueny iiai?oaiiy iaaei?iaiaeieo
aeanoeainoae i cieaeaiiy aiinoo eenith a ia’?ii ieiaee. O ieiaeao c
aaeeeeie ?aci?i?ioaoeiyie o?aaiaioia (7-15), yei eaaei iane/oaaeeny
eeniai iiae /an aiaeiaethaaiiy, i?ioiaeeoue iaeaieueo nooo?aa cieaeaiiy
iiaeaeno 7-o aiae 6,96 aei 6,52. I?e oeueiio One cia/ii cieaeo?oueny i?e
iacia/iie ciiii Oni, ui o?aeoo?oueny ye iaiaeii?iaeia ao?aoa eenith a
ia’?ii ieiaee oa ii iaaeao aeieia i iniaeeai o?aaiaioia. O ia’?ii aeieia
c?aceia c eeniaaei iiaeaenii 6,85 oa iaeeie ?o ?aci?i?ioaoeiyie (
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