STATIC VACANCIES IN ANTIFERROMAGNETIC LA2CUO4 AND SUPERCONDUCTING LA2-XSRXCUO4

被引:3
|
作者
GANG, X [1 ]
CIEPLAK, MZ [1 ]
CHIEN, CL [1 ]
机构
[1] JOHNS HOPKINS UNIV, DEPT PHYS & ASTRON, BALTIMORE, MD 21218 USA
关键词
D O I
10.1103/PhysRevB.42.240
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
The effect of static vacancies that eliminate local Cu2+ spins has been studied in both the antiferromagnetic and superconducting state of La2-xSrxCuO4. Static vacancies induce uncompensated magnetic moments and suppress the three-dimensional Néel state much less effectively than mobile vacancies. Analysis of magnetic susceptibility provides accurately the Cu2+ magnetic moment (1 B), which is insensitive to Sr doping, indicating that the d state of Cu2+ remains highly localized upon the introduction of mobile vacancy. © 1990 The American Physical Society.
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页码:240 / 243
页数:4
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