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材料研究学报  2005, Vol. 19 Issue (2): 183-188    
  论文 本期目录 | 过刊浏览 |
La0.5Sr0.5MnO3薄膜的输运特性和光诱导效应
金克新;陈长乐;王永仓;赵省贵;任韧;袁孝;宋宙模
西北工业大学;西安710072
引用本文:

金克新; 陈长乐; 王永仓; 赵省贵; 任韧; 袁孝 ; 宋宙模 . La0.5Sr0.5MnO3薄膜的输运特性和光诱导效应[J]. 材料研究学报, 2005, 19(2): 183-188.

全文: PDF(508 KB)  
摘要: 用磁控溅射方法制备了La0.5Sr0.5MnO3薄膜, 研究了薄膜的输运特性和光诱导效应. La0.5Sr0.5MnO3薄膜具有温度相变特征: 低温为铁磁金属相, 高温则为顺磁非导体相, 相变温度420 K. 为铁磁金属相时, 光诱导效应导致薄膜的电阻增大, 在360 K电阻变化相对值的最大值约为9.62%. 根据双交换作用模型, 激光导致顺磁非导体相小极化子的浓度增加, 使电阻减小.
关键词 无机非金属材料特大磁电阻效应光诱导     
Key words
收稿日期: 1900-01-01     
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