Structural Dependence of Magnetic and Transport Properties in Doped Manganite Perovskites

被引：0
|
作者：
HUANG Yun-Hui LIAO Chun-Sheng YAN Chun-Hua② (State Key Lab of Rare Earth Materials Chemistry and Applications
机构：
来源：
结构化学 | 2002年 / 03期
关键词：
magnetically ordered materials; structural distortion; magnetoresistance;
D O I：
10.14102/j.cnki.0254-5861.2002.03.001
中图分类号：
O641 [结构化学];
学科分类号：
摘要：
In this paper, the magnetic and transport properties in ABO3-type perovskite-like manganites as functions of the structure have been discussed from the viewpoints of A- and B-site doping, respectively. For the A-site doping, two simple parameters, tolerance factor t and variance of the A-cation radius distribution s, can be used to characterize the magnetic/resistive phase diagram. For the B-site doping, the case is complicated due to the direct action to the center of double exchange. However, the dopant-size-induced local strain effect plays an important role in the physical properties besides the size mismatch between A- and B-site ions.
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页码：233 / 240
页数：8
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