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Mathematical modeling and numerical simulation of domain wall motion in magnetic nanostrips with crystallographic defects

机译:具有晶体缺陷的磁性纳米带中畴壁运动的数学建模和数值模拟

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摘要

We investigate field and current driven domain wall propagation in magnetic nanostrips in the framework of the modified Landau-Lifshitz-Gilbert equation including spin-torque effects. We focus our attention on a nonlinear "dry-friction" dissipation model useful for describing the effect of structural defects such as inclusions, impurities or dislocations. The analytical and numerical results herein obtained are compared and their physical implications are discussed.
机译:我们在改良的Landau-Lifshitz-Gilbert方程的框架中研究包括自旋转矩效应的磁场和电流驱动的磁纳米带中畴壁的传播。我们将注意力集中在非线性“干摩擦”耗散模型上,该模型可用于描述结构缺陷(例如夹杂物,杂质或位错)的影响。比较此处获得的分析结果和数值结果,并讨论其物理含义。

著录项

  • 来源
    《Applied Mathematical Modelling》 |2012年第10期|p.4876-4886|共11页
  • 作者单位

    Department of Sciences for Engineering and Architecture, University of Messina, Contrada di Dio, 98166 Messina, Italy;

    Department of Mathematics, University of Messina, Contrada Papardo, Salita Sperone 31, 98166 Messina, Italy;

    Department of Applied Physics, University of Salamanca, Plaza de la Merced s, 37008 Salamanca, Spain;

    Department of Sciences for Engineering and Architecture, University of Messina, Contrada di Dio, 98166 Messina, Italy;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    micromagnetism; domain wall; traveling wave; dry-friction dissipation; spintronic devices;

    机译:微磁性畴壁行波干摩擦耗散;自旋电子设备;

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