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Magnetic domain wall propagation under ferroelectric control

机译:铁电控制下磁畴壁的传播

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摘要

Control of magnetic domain walls (DWs) and their propagation is among the most promising development directions for future information-storage devices. The well-established tools for such manipulation are the spin-torque transfer from electrical currents and strain. The focus of this paper is an alternative concept based on the nonvolatile ferroelectric field effect on DWs in a ferromagnet with carrier-mediated exchange coupling. The integrated ferromagnet/ferroelectric structure yields two superimposed ferroic patterns strongly coupled by an electric field. Using this coupling, we demonstrate an easy-to-form, stable, nondestructive, and electrically rewritable switch on magnetic domain wall propagation.
机译:控制磁畴壁(DW)及其传播是未来信息存储设备最有希望的发展方向之一。进行这种操作的公认工具是来自电流和应变的自旋转矩传递。本文的重点是基于对载流子介导的交换耦合的铁磁体中的DW的非挥发性铁电场效应的替代概念。集成的铁磁体/铁电结构产生两个被电场强耦合的叠加铁磁图形。使用这种耦合,我们展示了一种易于形成,稳定,无损且可电重写的磁畴壁传播开关。

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  • 来源
    《Physical review》 |2012年第23期|235130.1-235130.6|共6页
  • 作者单位

    Ceramics Laboratory, EPFL-Swiss Federal Institute of Technology, Lausanne 1015, Switzerland;

    Ceramics Laboratory, EPFL-Swiss Federal Institute of Technology, Lausanne 1015, Switzerland;

    Hitachi Cambridge Laboratory, JJ Thomson Avenue, Cambridge, CB3 OHE, United Kingdom;

    Hitachi Cambridge Laboratory, JJ Thomson Avenue, Cambridge, CB3 OHE, United Kingdom;

    MacDiarmid Institute for Advanced Materials and Nanotechnology, Victoria University, Wellington, New Zealand;

    School of Physics and Astronomy, University of Nottingham, Nottingham NG7 2RD, United Kingdom;

    Ceramics Laboratory, EPFL-Swiss Federal Institute of Technology, Lausanne 1015, Switzerland;

    School of Physics and Astronomy, University of Nottingham, Nottingham NG7 2RD, United Kingdom;

    School of Physics and Astronomy, University of Nottingham, Nottingham NG7 2RD, United Kingdom;

    School of Physics and Astronomy, University of Nottingham, Nottingham NG7 2RD, United Kingdom;

    Ceramics Laboratory, EPFL-Swiss Federal Institute of Technology, Lausanne 1015, Switzerland;

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

    switching phenomena; polymers; organic compounds;

    机译:切换现象;聚合物有机化合物;

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