THE OXYGEN ISOTOPE EFFECT IN PR, CA, AND ZN SUBSTITUTED YBA2CU3O7-DELTA AND EUBA2CU3O7-DELTA

被引：37

作者：

FRANCK, JP

GYGAX, S

SOERENSEN, G

ALTSHULER, E

HNATIW, A

JUNG, J

MOHAMED, MAK

YU, MK

SPROULE, GI

CHRZANOWSKI, J

IRWIN, JC

机构：

[1] UNIV ALBERTA, DEPT PHYS, EDMONTON T6G 2J1, ALBERTA, CANADA

[2] SIMON FRASER UNIV, DEPT PHYS, BURNABY V5A 1S6, BC, CANADA

[3] NATL RES COUNCIL CANADA, INST MICROSTRUCT SCI, OTTAWA K1A 0R9, ONTARIO, CANADA

来源：

PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS | 1991年 / 185卷

关键词：

D O I：

10.1016/0921-4534(91)91913-O

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The oxygen isotope effect-alpha was studied for Pr and Ca substituted YBCO, and for Zn substituted EuBCO and YBCO. Alpha increases to values near 0.5 for the highest Pr concentrations, and lowest transition temperatures. In the Zn substituted system alpha remains small to the lowest transition temperatures. It is shown that the isotope exponent is a function of mobile hole concentration, it decreases with increasing hole concentration and remains low for over-doping.

引用

页码：1379 / 1380

页数：2

共 11 条

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