PREPARATION AND PROPERTIES OF SUPERCONDUCTING Y(BA1-XSRX)2CU4O8

被引：55
|
作者：
WADA, T
SAKURAI, T
SUZUKI, N
KORIYAMA, S
YAMAUCHI, H
TANAKA, S
机构：
[1] Superconductivity Research Laboratory, International Superconductivity Technology Center, Tokyo 135, 10-13 Shinonome 1-Chome, Koto-ku
来源：
PHYSICAL REVIEW B | 1990年 / 41卷 / 16期
关键词：
D O I：
10.1103/PhysRevB.41.11209
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
We have prepared single-phase or near-single-phase Y(Ba1-xSrx)2Cu4O8 (0x0.4) samples by means of a high-oxygen-pressure technique using an O2 hot isostatic pressing. All the lattice constants, a, b, and c, of Y(Ba1-xSrx)2Cu4O8 monotonically decreased with increasing Sr content. The superconducting transition temperatures of these samples were nearly constant, being around 80 K, while the Tc-s of Y(Ba1-xSrx)2Cu3Oz (z7) samples decreased with increasing Sr content. When Y in Y(Ba0.8Sr0.2)2Cu4O8 was partially substituted by Ca, the superconducting critical temperature increased to near 90 K. © 1990 The American Physical Society.
引用
收藏
页码：11209 / 11213
页数：5
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