| 类钙钛石La—Sr—Mn—O中巨磁电阻及巨压电阻效应 |
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| 引用本文： | 张宁,丁维平.类钙钛石La—Sr—Mn—O中巨磁电阻及巨压电阻效应[J].南京师大学报,1997,20(1):23-25. |
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| 作者姓名： | 张宁 丁维平 |
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| 作者单位： | 南京师范大学物理系，固体微结构国家实验室 |
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| 摘 要： | 探讨了单轴压力下钙放Ｌａ－Ｓｒ－Ｍｎ－Ｏ系列材料的电、磁性质、通过实验，观察到可以与其本征巨磁阻相比拟的单轴压电阻。比较磁阻与压阻行为，可以预示，两者可能源于同一机理。
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| 关 键 词： | 钙钛矿型 类钙钛石 巨磁电阻 巨压电阻效应 |
Colossal Magnetoresistance and Giant Piezoresistance in Perovskite-like La-Sr-Mn-O |
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| Abstract: | The uniaxial pressure-induced change of electric and magnetic properties in the manganese provskite La-Sr-Mn-O system has been investigated.The intrinsic colossal magnetoresistance and a giant piezoresistance have been observed.Both were found the same in magnitude and to take place at same temperatures.These phenomenon suggest that the two effects may originate from same mechanism(s) that relates not only to double-exchange interaction but also more to structure distortion(s). |
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| Keywords: | piezoresistance magnetoresistance perovskite |
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