Structural and magnetic properties of spin- and charge-doped Sr0.8La0.2Ti0.9Co0.1O3

被引:14
作者
Yang, J. [1 ]
Lee, Y. P.
Lee, B. W.
机构
[1] Hanyang Univ, Quantum Photon Sci Res Ctr, Seoul 133791, South Korea
[2] Hanyang Univ, Dept Phys, Seoul 133791, South Korea
[3] Hankuk Univ Foreign Studies, Dept Phys, Yongin 449791, Kyungki, South Korea
关键词
D O I
10.1063/1.2767203
中图分类号
O59 [应用物理学];
学科分类号
摘要
The structural and the magnetic properties of spin- and charge-doped Sr0.8La0.2Ti0.9Co0.1O3 have been investigated. The sample shows a cubic structure at room temperature. The temperature dependence of magnetization (M) of Sr0.8La0.2Ti0.9Co0.1O3, in both zero-field-cooled (ZFC) and field-cooled (FC) modes between 100 and 70 000 Oe, was measured. It is found that the sample undergoes the paramagnetic-ferrimagnetic phase transition at around 50 K, and the M-ZFC curve lies above the M-FC one below 32 K when the applied field is less than 2000 Oe. This unusual behavior can be understood as a superposition of ferrimagnetic and paramagnetic contributions to the magnetization. (c) 2007 American Institute of Physics.
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页数:3
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