Magnetic and electronic transport properties of YbxCa1-xMnO3 compounds

被引:6
作者
Guo, YQ [1 ]
Roy, S
Ali, N
Sardela, MR
机构
[1] So Illinois Univ, Dept Phys, Carbondale, IL 62901 USA
[2] Univ Illinois, Ctr Microanal Mat, Mat Res Lab, Urbana, IL 61801 USA
关键词
D O I
10.1063/1.1451702
中图分类号
O59 [应用物理学];
学科分类号
摘要
The polycrystalline YbxCa1-xMnO3 (x=0.1,0.2) were studied by x-ray powder diffraction, magnetic, and electrical resistivity measurements. The YbxCa1-xMnO3 crystallizes in an orthogonally distorted perovskite structure, and shows the ferromagnetic ordering with T-C more than 110 K. However, the field dependence of magnetization and electrical resistivity exhibits very complicated behavior. A magnetic field induced insulator-metal transition has been found in the Yb0.2Ca0.8MnO3 compound. In addition, the large asymmetry in magnetization and resistivity hysteresis loops has been observed in this compound at 10 K, which might be due to the charge ordering and magnetocrystalline anisotropy. (C) 2002 American Institute of Physics.
引用
收藏
页码:7394 / 7396
页数:3
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