...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Physical review >Landau-Lifshitz-Bloch equation for domain wall motion in antiferromagnets
【24h】

Landau-Lifshitz-Bloch equation for domain wall motion in antiferromagnets

机译：反铁磁体中畴壁运动的Landau-Lifshitz-Bloch方程

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

In this work, we derive the Landau-Lifshitz-Bloch equation accounting for the multidomain antiferromagnetic (AFM) lattice at finite temperature, in order to investigate the domain wall motion, the core issue for AFM spintronics. The continuity equation of the staggered magnetization is obtained using the continuum approximation, allowing an analytical calculation of the domain wall dynamics. The influence of temperature on the static domain wall profile is investigated, and the analytical calculations agree well with the numerical simulations on temperature-gradient-driven domain wall motion, confirming the validity of this theory. Furthermore, the decrease of the acceleration and the increase of the saturation velocity of the domain wall with the increase of temperature are uncovered for a fixed gradient. Moreover, it is worth noting that this theory could be also applied to dynamics of various wall motions in an AFM system. The present theory represents a comprehensive approach to the domain wall dynamics in AFM materials, a crucial step toward the development of AFM spintronics.
机译：在这项工作中，我们推导了考虑有限温度下的多畴反铁磁（AFM）晶格的Landau-Lifshitz-Bloch方程，以便研究畴壁运动，这是AFM自旋电子学的核心问题。交错磁化的连续性方程可使用连续近似来获得，从而可以对畴壁动力学进行解析计算。研究了温度对静态畴壁轮廓的影响，其解析计算与温度梯度驱动畴壁运动的数值模拟吻合良好，证实了该理论的有效性。此外，对于固定的梯度，没有发现随着温度的升高，畴壁的加速度的减小和饱和速度的增大。此外，值得注意的是，该理论也可以应用于AFM系统中各种壁运动的动力学。本理论代表了AFM材料中畴壁动力学的综合方法，是朝着AFM自旋电子学发展的关键一步。

著录项

  • 来源
    《Physical review》 |2019年第21期|214436.1-214436.7|共7页
  • 作者

    Chen Z. Y.; Yan Z. R.; Qin M. H.; Liu J-M;

  • 作者单位

    South China Normal Univ, Inst Adv Mat, South China Acad Adv Optoelect, Guangzhou 510006, Guangdong, Peoples R China|South China Normal Univ, Guangdong Prov Key Lab Quantum Engn & Quantum Mat, Guangzhou 510006, Guangdong, Peoples R China;

    South China Normal Univ, Inst Adv Mat, South China Acad Adv Optoelect, Guangzhou 510006, Guangdong, Peoples R China|South China Normal Univ, Guangdong Prov Key Lab Quantum Engn & Quantum Mat, Guangzhou 510006, Guangdong, Peoples R China;

    South China Normal Univ, Inst Adv Mat, South China Acad Adv Optoelect, Guangzhou 510006, Guangdong, Peoples R China|South China Normal Univ, Guangdong Prov Key Lab Quantum Engn & Quantum Mat, Guangzhou 510006, Guangdong, Peoples R China;

    South China Normal Univ, Inst Adv Mat, South China Acad Adv Optoelect, Guangzhou 510006, Guangdong, Peoples R China|South China Normal Univ, Guangdong Prov Key Lab Quantum Engn & Quantum Mat, Guangzhou 510006, Guangdong, Peoples R China|Nanjing Univ, Lab Solid State Microstruct, Nanjing 210093, Jiangsu, Peoples R China|Nanjing Univ, Innovat Ctr Adv Microstruct, Nanjing 210093, Jiangsu, Peoples R China;

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

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号