EVIDENCE FOR SPIN-GLASS MAGNETISM IN THE BULK MAGNETIC-PROPERTIES OF YBA2(CU0.75FE0.25)(3)O-7+Y

被引：1
|
作者：
JOINER, WCH
WANG, JP
机构：
[1] Physics Department, University of Cincinnati, Cincinnati
来源：
SOLID STATE COMMUNICATIONS | 1995年 / 93卷 / 10期
关键词：
SPIN GLASSES; SUPERCONDUCTORS;
D O I：
10.1016/0038-1098(94)00790-X
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
Spin glass magnetic properties are found in a ceramic sample of YBa2(Cu0.75Fe0.25)(3)O-7+y. These include a clear separation between the field cooled and zero field cooled magnetization vs temperature curves, a nonlinear M vs H magnetization curve, with hysteresis and a remanent moment, and a logarithmic time decay of the remanent moment. The freezing temperature of 36K is consistent with Mossbauer and neutron scattering experiments showing spin glass behavior in these materials. Finally an additional rather sharp magnetic transition is observed at 3.2K.
引用
收藏
页码：837 / 840
页数：4
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