| La0.33Pr0.34Ca0.33MnO3薄膜的应变效应 |
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| 引用本文： | 赵华英,杨 欢,马继云,方 煦,M. Kamran,戴耀民,李 明,赵柏儒,邱祥冈.La0.33Pr0.34Ca0.33MnO3薄膜的应变效应[J].物理学报,2008,57(11):7168-7172. |
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| 作者姓名： | 赵华英 杨 欢 马继云 方 煦 M. Kamran 戴耀民 李 明 赵柏儒 邱祥冈 |
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| 作者单位： | 中国科学院物理研究所超导国家重点实验室和北京凝聚态物理实验室，北京 100190 |
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| 基金项目： | 国家自然科学基金(批准号10474128，10674168)资助的课题. |
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| 摘 要： | 采用脉冲激光沉积法分别在(100)LaAlO3和(100)SrTiO3基片上生长了La0.33Pr0.34Ca0.33MnO3薄膜，并通过磁测量和电输运测量对生长在不同基片上的La0.33Pr0.34Ca0.33MnO3薄膜的物性进行了研究.结果表明，基片和薄膜之间的压应力导致La关键词：
钙钛矿锰氧化物
相分离
电荷有序
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| 关 键 词： | 钙钛矿锰氧化物 相分离 电荷有序 |
| 收稿时间： | 2008-04-10 |
Stress-induced effects in epitaxial La0.33Pr0.34Ca0.33MnO3 films |
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| Zhao Hua-Ying,Yang Huan,Ma Ji-Yun,Fang Xu,M. Kamran,Dai Yao-Min,Li Ming,Zhao Bai-Ru and Qiu Xiang-Gang.Stress-induced effects in epitaxial La0.33Pr0.34Ca0.33MnO3 films[J].Acta Physica Sinica,2008,57(11):7168-7172. |
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| Authors: | Zhao Hua-Ying Yang Huan Ma Ji-Yun Fang Xu M Kamran Dai Yao-Min Li Ming Zhao Bai-Ru and Qiu Xiang-Gang |
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| Abstract: | La0.33Pr0.34Ca0.33MnO3 thin films have been grown on (100) LaAlO3 and (100) SrTiO3 substrates by pulsed laser deposition, and the physical properties of those thin films have been studied through magnetic and electric transport measurements. The results show that compressive strain between the film and substrate favors the formation of the ferromagnetic metallic phase while suppressing the charge ordered insulating phase. On the contrary, tensile strain tends to enhance the ferromagnetic metallic phase while eliminating the charge ordered insulating phase. The reason could be that the strain induces change in the Mn-O bonding angle in the crystal lattice and thus modify the double exchange interaction. |
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| Keywords: | perovskite manganite phase separation charge ordering |
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