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首页> 外文期刊>Applied Physics Letters >Enhancement of the metal-insulator transition temperature in La_(0.7)Ca_(0.3)MnO_3 film by magnetic nanodots
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Enhancement of the metal-insulator transition temperature in La_(0.7)Ca_(0.3)MnO_3 film by magnetic nanodots

机译：磁性纳米点提高La_（0.7）Ca_（0.3）MnO_3膜中金属-绝缘体的转变温度

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摘要

The magnetic and transport properties of a single layer of La_(0.7)Ca_(0.3)MnO_3 are compared with one topped with magnetic nanodots formed from oxides of iron. Remarkably enhanced magnetization and metal-insulator transition temperature were observed for the decorated film capped with In_2O_3. The saturation magnetization increased by ～35%, and the metal-insulator transition temperature increased from 75 K to 145 K at zero field. However, no enhancement was observed for either the La_(0.7)Ca_(0.3)MnO_3 film with uncapped magnetic dots or the bilayer formed from La_(0.7)Ca_(0.3)MnO_3 and In_2O_3.
机译：将La_（0.7）Ca_（0.3）MnO_3的单层的磁性和传输特性与顶部覆盖有由铁的氧化物形成的磁性纳米点的磁性和传输特性进行了比较。对于覆盖有In_2O_3的装饰膜，观察到显着提高的磁化强度和金属-绝缘体转变温度。在零磁场下，饱和磁化强度增加了约35％，金属-绝缘体的转变温度从75 K升高到145K。然而，对于具有未封盖的磁性点的La_（0.7）Ca_（0.3）MnO_3膜或由La_（0.7）Ca_（0.3）MnO_3和In_2O_3形成的双层，都没有观察到增强。

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  • 来源
    《Applied Physics Letters》 |2013年第7期|072402.1-072402.4|共4页
  • 作者

    Rong-Rong Ma; Xian-Peng Zhang; Feng-Xian Jiang; Zhi-Yong Quan; G. A. Gehring; Xiao-Hong Xu;

  • 作者单位

    School of Chemistry and Materials Science, Key Laboratory of Magnetic Molecules and Magnetic Information Materials, Ministry of Education, Shanxi Normal University, Linfen 041004, People's Republic of China;

    School of Chemistry and Materials Science, Key Laboratory of Magnetic Molecules and Magnetic Information Materials, Ministry of Education, Shanxi Normal University, Linfen 041004, People's Republic of China;

    School of Chemistry and Materials Science, Key Laboratory of Magnetic Molecules and Magnetic Information Materials, Ministry of Education, Shanxi Normal University, Linfen 041004, People's Republic of China;

    School of Chemistry and Materials Science, Key Laboratory of Magnetic Molecules and Magnetic Information Materials, Ministry of Education, Shanxi Normal University, Linfen 041004, People's Republic of China;

    Department of Physics and Astronomy, University of Sheffield, Hicks Building, Sheffield S3 7RH, United Kingdom;

    School of Chemistry and Materials Science, Key Laboratory of Magnetic Molecules and Magnetic Information Materials, Ministry of Education, Shanxi Normal University, Linfen 041004, People's Republic of China;

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