大学物理 ›› 2021, Vol. 40 ›› Issue (4): 1-5.doi: 10. 16854 /j. cnki. 1000-0712. 200451

• 教学研究 •    下一篇

固体物理教学的若干思考Ⅱ: 磁学前沿案例

袁喆   

  1. 北京师范大学物理学系,北京100875
  • 收稿日期:2020-10-09 修回日期:2020-10-26 出版日期:2021-04-13 发布日期:2021-04-14
  • 作者简介:袁喆( 1981—) ,男,安徽泗县人,北京师范大学物理学系教授,主要从事自旋输运与自旋类脑计算等方面研究,主讲固体物理课程
  • 基金资助:
    中央高校基本科研业务费专项资金( 2018EYT03) 资助

Some thoughts on teaching solid state physics II: an example of the frontiers in magnetism

YUAN Zhe   

  1. Department of Physics,Beijing Normal University,Beijing 100875,China
  • Received:2020-10-09 Revised:2020-10-26 Online:2021-04-13 Published:2021-04-14

摘要: 固体物理学是物理学本科教育的一门核心课程,其内容紧密联系凝聚态物理研究前沿. 在教学中引入适当的前沿

进展,可以拓展学生的学术视野,激发深入学习和参与研究的动力. 本文结合固体物理中的铁磁性章节,选择铁磁金属中磁畴

壁导致的电阻作为一个典型案例,引导学生整合能带论、微扰论和输运现象等基础知识,分析磁畴壁中的自旋相关输运问题,

从而将自旋电子学的前沿研究融入固体物理教学中,为打造具有高阶性、创新性和挑战度的固体物理课程提供参考.

关键词: 固体物理学, 固体的磁性, 自旋相关输运, 磁畴壁

Abstract: Solid state physics is an important course for undergraduate students of physics,and its contents are

closely related to the research frontiers of condensed matter physics. Introducing appropriate latest progress in the

teaching can expand students’scientific level and encourage them to pursue further studies and researches. In this

paper,domain-wall resistance in ferromagnetic metals in the chapter of magnetism in solid states is taken as a typical

example and a guidance for students is provided to analyze the spin dependent transport in magnetic domain

walls. In this process, the students need to integrate the knowledge they have learned including the energy band theory,

perturbation theory and transport phenomena in quantum mechanics and solid state physics. By systematically illustrating

this typical example, the integration of the cutting-edge research of spintronics into teaching solid state

physics is demonstrated which would be a useful reference for creating a high -level, innovative and challenging

course of solid state physics.

Key words: solid state physics, magnetism, spin-dependent transport, magnetic domain wall