Cluster spin glass behavior in Bi(Fe0.95Co0.05)O3

被引：32
|
作者：
Xu, Qingyu [1 ]
Zhou, Shengqiang [2 ]
Wu, D. [3 ]
Uhlarz, Marc
Tang, Y. K. [1 ]
Potzger, Kay [2 ]
Xu, M. X. [1 ]
Schmidt, Heidemarie [2 ]
机构：
[1] Southeast Univ, Dept Phys, Nanjing 211189, Peoples R China
[2] Forschungszentrum Dresden Rossendorf, Inst Ionenstrahlphys & Mat Forsch, D-01314 Dresden, Germany
[3] Nanjing Univ, Dept Mat Sci & Engn, Nanjing 210008, Peoples R China
来源：
JOURNAL OF APPLIED PHYSICS | 2010年 / 107卷 / 09期
基金：
中国国家自然科学基金;
关键词：
BIFEO3;
D O I：
10.1063/1.3406150
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
The static and time-dependent magnetic properties of Bi(Fe0.95Co0.05)O-3 have been investigated by dc and ac magnetization measurements. Cluster spin glass has been confirmed to be the ground state due to the frustration of the interaction between the ferromagnetic clusters by canted antiferromagnetically arranged Fe spins (T-c > 350 K) and by ferrimagnetically arranged Co and Fe spins (T-c similar to 250 K). Two freezing temperatures T-f of about 260 and 100 K have been clearly identified from the abrupt change in magnetization relaxation. The higher T-f is related to the canted antiferromagnetically arranged Fe spins, and the lower T-f is related to the ferrimagnetically arranged Co and Fe spins. The cluster spin glass behavior with two freezing temperatures has been confirmed by ac susceptibility measurements. (C) 2010 American Institute of Physics. [doi:10.1063/1.3406150]
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页数：4
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