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Electric-field control of magnetism by reversible surface reduction and oxidation reactions

机译:通过可逆的表面还原和氧化反应控制磁场的磁场

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摘要

Electric control of magnetism is a vision which drives intense research on magnetic semiconductors and multiferroics. Recently, ultrathin metallic films were also reported to show magnetoelectric effects at room temperature. Here we demonstrate much stronger effects by exploiting reduction/oxidation reactions in a naturally grown oxide layer exchange coupled to an underlying ferromagnet. For the exemplarily studied FePt/iron oxide composite in an electrolyte, a large and reversible change of magnetization and anisotropy is obtained. The principle can be transferred to various metal/oxide combinations. It represents an approach towards multifunctionality.
机译:磁性的电控制是推动对磁性半导体和多铁性材料进行深入研究的愿景。最近,还报道了超薄金属膜在室温下显示出磁电效应。在这里,我们通过在与底层铁磁体耦合的自然生长的氧化物层交换中利用还原/氧化反应证明了更强的效果。对于在电解质中示例性研究的FePt /氧化铁复合物,获得了大且可逆的磁化和各向异性变化。该原理可以转移到各种金属/氧化物组合中。它代表了一种实现多功能的方法。

著录项

  • 来源
    《Physical review》 |2013年第22期|224411.1-224411.7|共7页
  • 作者单位

    IFW Dresden, P.O. Box 270116, 01171 Dresden, Germany,TU Dresden, Faculty of Mechanical Engineering, Institute for Materials Science, 01062 Dresden, Germany;

    IFW Dresden, P.O. Box 270116, 01171 Dresden, Germany,TU Dresden, Faculty of Mechanical Engineering, Institute for Materials Science, 01062 Dresden, Germany;

    IFW Dresden, P.O. Box 270116, 01171 Dresden, Germany,TU Dresden, Faculty of Mechanical Engineering, Institute for Materials Science, 01062 Dresden, Germany;

    IFW Dresden, P.O. Box 270116, 01171 Dresden, Germany;

    IFW Dresden, P.O. Box 270116, 01171 Dresden, Germany;

    IFW Dresden, P.O. Box 270116, 01171 Dresden, Germany,Rutgers State University, Department of Physics and Astronomy, Piscataway, New Jersey 08854, USA;

    IFW Dresden, P.O. Box 270116, 01171 Dresden, Germany,TU Dresden, Faculty of Mechanical Engineering, Institute for Materials Science, 01062 Dresden, Germany;

    IFW Dresden, P.O. Box 270116, 01171 Dresden, Germany,Institute of Physics, Chemnitz University of Technology, D-09107 Chemnitz, Germany;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    magnetic anisotropy; magnetic properties of thin films; surfaces; and interfaces; oxidation;

    机译:磁各向异性薄膜的磁性表面;和接口;氧化;

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