| La0.67Ca0.33MnO3薄膜中的各向异性应变与电荷有序 |
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| 引用本文： | 李国民,王凌飞,黄振,吴文彬.La0.67Ca0.33MnO3薄膜中的各向异性应变与电荷有序[J].低温物理学报,2011(1):10-14. |
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| 作者姓名： | 李国民 王凌飞 黄振 吴文彬 |
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| 作者单位： | 合肥微尺度物质科学国家实验室中国科学技术大学; |
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| 基金项目： | 国家自然科学基金(项目编号:10874166,50721061); 国家重点基础研究发展计划(项目编号:2006CB922005,2009CB929502)资助的课题~~ |
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| 摘 要： | 本文采用脉冲激光沉积法在NdGaO3(001)单晶衬底上制备了一系列的La0.67Ca0.33MnO3薄膜,实验主要研究了薄膜的输运性质.La0.67Ca0.33sMnO3块材是铁磁金属基态,而La0.67Ca0.33MnO3/NdGaO3(001)薄膜由于各向异性应变的存在,可以观测到电荷有序绝缘相的出现.薄膜样品表...
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| 关 键 词： | 钙钛矿锰氧化物 电荷有序 应变 |
ANISOTROPIC STRAIN AND CHARGE ORDERING IN La_(0.67)Ca_(0.33)MnO_3 FILMS |
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| LI Guo-min WANG Ling-fei HUANG Zhen WU Wen-bin Hefei National Laboratory for Physical Sciences at Microscale,University of Science , Technology of China,Hefei.ANISOTROPIC STRAIN AND CHARGE ORDERING IN La_(0.67)Ca_(0.33)MnO_3 FILMS[J].Chinese Journal of Low Temperature Physics,2011(1):10-14. |
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| Authors: | LI Guo-min WANG Ling-fei HUANG Zhen WU Wen-bin Hefei National Laboratory for Physical Sciences at Microscale University of Science Technology of China Hefei |
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| Institution: | LI Guo-min WANG Ling-fei HUANG Zhen WU Wen-bin Hefei National Laboratory for Physical Sciences at Microscale,University of Science and Technology of China,Hefei 230026 |
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| Abstract: | Transport properties of La0.67Ca0.33MnO3 films grown on NdGaO3(001) substrates were systematically studied.The control of charge ordering insulating(COI) phase in epitaxial La0.67Ca0.33MnO3 / NdGaO3(001) thin films,with essentially the ferromagnetic metal ground state as observed for the bulk counterparts,has been realized via the anisotropic strain relaxation.These films show significant phase coexistence of ferromagnetic metallic state and charge ordering insulating state.By changing the film thickness an... |
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| Keywords: | perovskite manganites charge ordering strain |
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