Is the insulator-metal transition in perovskites associated with the bulk magnetic phase transition?

被引：1
|
作者：
Baszynski, J
Walz, F
Tolinski, T
机构：
[1] Polish Acad Sci, Inst Mol Phys, PL-60179 Poznan, Poland
[2] Max Planck Inst Met Forsch, D-70569 Stuttgart, Germany
来源：
SENSORS AND ACTUATORS A-PHYSICAL | 2000年 / 81卷 / 1-3期
关键词：
perovskites; colossal magnetoresistance; manganese oxides; magnetic susceptibility; magnetic after-effect;
D O I：
10.1016/S0924-4247(99)00167-3
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
Resistivity and magnetic after-effect (MAE) dependencies on temperature are studied for La1/3Nd1/3Ca1/3MnO3. The MAE isochronals and temperature dependence of susceptibility show two phase transitions (first and second-order) which do not coincide with the peak in resistivity. This peak is indicative of the occurrence of a semiconductor-metal transition. The temperature irreversible R-irr and reversible R-rev part (no thermal hysteresis) of the resistivity was determined. (C) 2000 Elsevier Science S.A. All rights reserved.
引用
收藏
页码：37 / 39
页数：3
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