DIRECT MEASUREMENT OF THE CU-OXIDATION NUMBER OF CUPRATE SUPERCONDUCTOR CERAMICS

被引:2
作者
DANKHAZI, Z
SZASZ, A
KOJNOK, J
KIRCHMAYR, H
MULLER, H
WATSON, LM
GAL, M
TORKOS, K
SOLYMOS, K
机构
[1] Laboratory of Surface and Interface Physics, Eotvos University, Budapest, H-1088, Muzeum krt
[2] Institute of Experimental Physics, Technical University, Wien, Wien, A-1040
[3] Department of Metallurgy, University of Strathclyde, Glasgow, G1 1XN
[4] Department of General and Inorganic Chemistry, Eotvos University, Budapest, H-1088
来源
JOURNAL OF SUPERCONDUCTIVITY | 1991年 / 4卷 / 03期
关键词
CUPRATE SUPERCONDUCTORS; CU-OXIDATION NUMBER;
D O I
10.1007/BF00620790
中图分类号
O59 [应用物理学];
学科分类号
摘要
The Cu oxidation number in YBa2Cu3O7 has been measured directly by soft X-ray fluorescent spectroscopy both at room temperature and at liquid N2 temperature. The measurements are based on a calibration curve from different Ba-O compounds. The effect of changes in oxidation number above and below the transition temperature and its role in high T(c) superconductivity are discussed.
引用
收藏
页码:219 / 225
页数:7
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