Magnetic Behavior of Fe Doped In2O3
Magnetic Behavior of Fe Doped In2O3
复制标题
DOI：
10.1143/jjap.44.l979
复制
发表时间：
2005-07
影响因子：
1.5
通讯作者：
S. Kohiki;Yusuke Murakawa;Kyoko Hori;H. Shimooka;T. Tajiri;H. Deguchi;M. Oku;M. Arai;M. Mitome;Y. Bando
中科院分区：
文献类型：
--
作者：
S. Kohiki;Yusuke Murakawa;Kyoko Hori;H. Shimooka;T. Tajiri;H. Deguchi;M. Oku;M. Arai;M. Mitome;Y. Bando
报道了在氧气气氛中生长的In：Fe = 1.85：0.15的Fe掺杂In_2O_3粉末在室温下的自旋玻璃转变和室温以下的团簇玻璃行为。在交流磁化率，一个大的峰值和一个小的尖点，分别观察到在RT和30 K。随着外加磁场频率的增加，室温下的峰向更高的温度移动，而尖点没有显示出频率依赖性。三次谐波非线性极化率表现出一个发散的峰值在RT。场冷直流磁化率几乎线性增加RT以下，而零场冷直流磁化率偏离低于场冷一个降低温度。
We report spin-glass transition at room temperature (RT) and cluster-glass behavior below RT for Fe doped In2O3 powders with the atomic ratio of In : Fe = 1.85 : 0.15 grown in an oxygen atmosphere. In ac susceptibility, a large peak and a small cusp were observed at RT and ≈30 K, respectively. The peak at RT shifted to higher temperatures with an increase of applied field frequency, while the cusp showed no frequency dependence. Third harmonic nonlinear susceptibility exhibited a divergent peak at RT. Field-cooled dc susceptibility increased almost linearly below RT, whereas zero-field-cooled dc susceptibility deviated below the field-cooled one with lowering temperature.