BI AND CU VALENCES OF BI-BASED SUPERCONDUCTORS

被引:13
作者
KAMBE, S
MURAKOSHI, Y
SEKINE, R
KAWAI, M
YAMADA, K
OHSHIMA, S
OKUYAMA, K
机构
[1] TOKYO GAKUGEI UNIV,KOGANEI,TOKYO 184,JAPAN
[2] INST PHYS & CHEM RES,WAKO,SAITAMA 35101,JAPAN
[3] TOKYO INST TECHNOL,RLEM,MIDORI KU,YOKOHAMA,KANAGAWA 227,JAPAN
来源
PHYSICA C | 1991年 / 190卷 / 1-2期
关键词
D O I
10.1016/S0921-4534(05)80228-X
中图分类号
O59 [应用物理学];
学科分类号
摘要
Excess charge, Bi and Cu valences are discussed in connection with La substitution for Sr in Bi 2201 phase and with Y substitution for Ca in the Bi 2212 phase. For the 2201 and the 2212 phases, the effect of substitution amount on oxygen content and the Cu valence values are different. The discrepancies between two phases are discussed in connection with differences in substitution site, oxygen positions and oxygen contents.
引用
收藏
页码:139 / 140
页数:2
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