影响巨磁电阻钙钛矿锰氧化合物居里温度的结构分析

功能材料, 2002, 33(5): 495-499.

1.南京大学,固体微结构国家重点实验室,江苏,南京,210093

2.南京大学,固体微结构国家重点实验室,江苏,南京,210093

基金项目: 国家攀登计划(59861021) 国家自然科学基金(19890310)

Relation between structure and Curie-temperature of peroviskite with colossal magnetoresistance effect

测定了Lal-xAr(MnB)O3型巨磁电阻钙钛矿化合物在不同组成时的居里温度,利用A位离子对晶格能的贡献和B位离子极化力的变化分别对A和B位离子掺杂及A、B位离子组成同时变化时钙钛矿的居里温度进行了分析,结果与实验一致.

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