V2EX spin wave

Spin Wave

Definition / 定义

自旋波:磁性材料中大量电子自旋发生协同、波动式的集体激发(可理解为“自旋的波动传播”)。在量子描述中常与磁振子(magnon)相关。

Pronunciation / 发音

/spn wev/

Examples / 例句

Spin waves can travel through a магнит性材料.
自旋波可以在磁性材料中传播。

In a ferromagnet, the dispersion of a spin wave depends on the exchange interaction and the material’s magnetic anisotropy.
在铁磁体中,自旋波的色散关系取决于交换相互作用以及材料的磁各向异性。

Etymology / 词源

spin 原指“旋转”,在物理学中引申为粒子的自旋(一种内禀角动量);wave 指“波”。两词组合成 spin wave,字面即“自旋的波”,用于描述磁性体系里自旋取向随空间与时间起伏并传播的现象。该术语在20世纪固体物理与磁学发展中逐渐固定下来(与“magnon”概念密切相关)。

Related Words / 相关词

Literary Works / 文学作品

  • Introduction to Solid State Physics(Charles Kittel) 以教材方式介绍自旋波与磁振子等概念
  • Solid State Physics(Neil W. Ashcroft & N. David Mermin) 在磁性与集体激发相关章节讨论自旋波
  • Quantum Theory of Magnetism(Robert M. White) 系统讲解自旋波理论与实验背景
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