OXYGEN-ISOTOPE EFFECT IN TC OF LA2-YSRYCU1-XMEXO4 (ME=NI, ZN, CO, FE)

被引：2

作者：

BABUSHKINA, N ^{[1
]}

OZHOGIN ^{[1
]}

INYUSHKIN, A ^{[1
]}

TALDENKOV, A ^{[1
]}

MOLCHANOVA, L ^{[1
]}

机构：

[1] MOSCOW MV LOMONOSOV STATE UNIV, MOSCOW 119899, RUSSIA

来源：

PHYSICA B-CONDENSED MATTER | 1994年 / 194卷

关键词：

D O I：

10.1016/0921-4526(94)91216-5

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

The effect of oxygen isotope substitution on superconducting transition temperature T(c) has been measured in La1.85Sr0.15Cu1-yMeyO4(Me=Ni, Zn Co, Fe). In all compounds the T(c) decreases and the isotope exponent alpha(o) = -d(lnT(c))/d(lnM) increases with increasing Me content. The results for LSCO:Ni and LSCO:Zn are in good agreement with the Abrikosov-Gor'kov (AG) theory of magnetic pair-breaking. The dependecies of alpha(o)(x) and T(c) (x) for LSCO:Fe and LSCO:Co are much stronger than those predicted by the theory.

引用

页码：1433 / 1434

页数：2

共 11 条

[1]

ABRIKOSOV AA, 1961, SOV PHYS JETP-USSR, V12, P1243

[2] OXYGEN ISOTOPE EFFECT IN LA-SR-CU-O SYSTEM WITH TC MODIFIED BY NI AND ZN DOPING [J].

BABUSHKINA, N ;

INYUSHKIN, A ;

OZHOGIN, V ;

TALDENKOV, A ;

KOBRIN, I ;

VOROBEVA, T ;

MOLCHANOVA, L ;

DAMYANETS, L ;

UVAROVA, T ;

KUZAKOV, A .

PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS, 1991, 185 (pt 2) :901-902

[3] DEPENDENCE OF THE OXYGEN ISOTOPE EFFECT UPON HOLE DENSITY IN BI2SR2CA1-XYXCU2O8+DELTA AND Y1-XCAXBA2CU4O8 [J].

BORNEMANN, HJ ;

MORRIS, DE ;

LIU, HB ;

NARWANKAR, PK .

PHYSICA C, 1992, 191 (1-2) :211-218

[4] ISOTOPE EFFECT IN YBA2-XLAXCU3OZ - EVIDENCE FOR PHONON-MEDIATED HIGH-TEMPERATURE SUPERCONDUCTIVITY [J].

BORNEMANN, HJ ;

MORRIS, DE .

PHYSICAL REVIEW B, 1991, 44 (10) :5322-5325

[5]

BORNEMANN HJ, 1991, PHYSICA C, V182, P132, DOI 10.1016/0921-4534(91)90469-F

[6] MODIFICATION OF THE ISOTOPE EFFECT DUE TO PAIR BREAKING [J].

CARBOTTE, JP ;

GREESON, M ;

PEREZGONZALEZ, A .

PHYSICAL REVIEW LETTERS, 1991, 66 (13) :1789-1792

[7] OXYGEN ISOTOPE EFFECT AND STRUCTURAL PHASE-TRANSITIONS IN LA2CUO4-BASED SUPERCONDUCTORS [J].

CRAWFORD, MK ;

FARNETH, WE ;

MCCARRON, EM ;

HARLOW, RL ;

MOUDDEN, AH .

SCIENCE, 1990, 250 (4986) :1390-1394

[8] ANOMALOUS OXYGEN ISOTOPE EFFECT IN LA2-XSRXCUO4 [J].

CRAWFORD, MK ;

KUNCHUR, MN ;

FARNETH, WE ;

MCCARRON, EM ;

POON, SJ .

PHYSICAL REVIEW B, 1990, 41 (01) :282-287

[9] OBSERVATION OF AN OXYGEN ISOTOPE EFFECT IN SUPERCONDUCTING (Y1-XPRX)BA2CU3O7-DELTA [J].

FRANCK, JP ;

JUNG, J ;

MOHAMED, MAK ;

GYGAX, S ;

SPROULE, GI .

PHYSICAL REVIEW B, 1991, 44 (10) :5318-5321

[10] OXYGEN ISOTOPE EFFECT IN SUPERCONDUCTING (Y1-XPRX)BA2CU3O-DELTA [J].

FRANCK, JP ;

JUNG, J ;

MOHAMED, MAK ;

GYGAX, S ;

SPROULE, GI .

PHYSICA B, 1991, 169 (1-4) :697-698

← 1 2 →