Crystal structure and Tc of YBa2Cu3Oy (y > 7)

被引：0
|
作者：
Okai, Bin [1 ]
Ohta, Masatsune [1 ]
机构：
[1] Kogakuin Univ, Tokyo, Japan
来源：
Japanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers | 1991年 / 30卷 / 8 A期
关键词：
Ceramic Materials - Crystals--Structure - Yttrium Compounds;
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学科分类号：
摘要：
At a high oxygen pressure of 6 GPa, YBa2Cu3Oy was heat-treated. With an increasing supply of oxygen, the crystal structure of the processed specimens gradually changed from orthorhombic (y = 7) to tetragonal (y = 7.7), whereas the onset of superconducting transition temperature consistently remained at 92 K for all of the specimens. The distribution of charges among the copper-oxygen chains and the CuO2 sheets in YBa2Cu3Oy (y > 7) are discussed.
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页码：1378 / 1380
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