Giant magneto-impedance effects in sintered La1-xCaxMnO3 oxides

被引:17
作者
Fu, CM [1 ]
Hsu, KS [1 ]
Lin, ML [1 ]
Wen, ZH [1 ]
机构
[1] Natl Kaohsiung Normal Univ, Dept Phys, Kaohsiung, Taiwan
关键词
magneto-impedance; manganese oxides;
D O I
10.1016/S0304-8853(99)00672-1
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
We report on the study of high-frequency magneto-transport properties in the sintered La1-xCaxMnO3 oxides. Experimental results have demonstrated a giant magneto-impedance (GMI) effect, much larger than the DC magnetoresistive effect, in these manganese oxides. The temperature and frequency dependence of the magneto-impedance is dependent on the ratio of Mn+3/Mn+4 and the magnetic phase state in these compounds. Our result implies a possible sensitive probe of complex phase states at high frequency and the further technical GMI applications. 2000 Elsevier Science B.V. (C) All rights reserved.
引用
收藏
页码:151 / 153
页数:3
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