V2EX gyromagnetism

GYROMAGNETISM

Definition / 释义

回旋磁性;旋磁效应:指带有角动量的粒子或系统(如电子自旋、轨道运动、旋转电荷)与磁场之间的耦合所表现出的磁性行为,常与回旋磁比(gyromagnetic ratio)等概念相关。该词也可更宽泛地指“由旋转/回旋运动导致的磁现象”。

Pronunciation / 发音

/daromntzm/

Examples / 例句

Gyromagnetism helps explain why electrons behave like tiny magnets.
回旋磁性有助于解释为什么电子会表现得像微小的磁体。

In nuclear magnetic resonance, gyromagnetism links a nucleus’s angular momentum to its response in an external magnetic field.
在核磁共振中,回旋磁性把原子核的角动量与其在外加磁场中的响应联系起来。

Etymology / 词源

gyro- 来自希腊语 gyros(“圆、旋转”),表示“旋转/回旋”;magnetism 源自希腊语 *magnētis (lithos)*(“磁石”),与古地名 Magnesia(盛产磁石之地)相关。合起来强调“与旋转(角动量)相关的磁性/磁效应”。

Related Words / 相关词

Notable Works / 著作示例

  • The Feynman Lectures on Physics(《费曼物理学讲义》)讨论自旋、磁矩与相关的回旋磁比等概念(常与 gyromagnetism 同一知识域出现)。
  • J. D. Jackson, Classical Electrodynamics(《经典电动力学》)在电磁理论与磁矩/角动量关系的语境中涉及相关术语。
  • L. D. Landau & E. M. Lifshitz, Course of Theoretical Physics(《理论物理学教程》系列,如《电动力学》《统计物理学》部分)在磁性与角动量耦合的框架中出现相关表述。
  • Charles Kittel, Introduction to Solid State Physics(《固体物理导论》)在固体磁性(自旋、磁矩、共振现象)章节中常见相关用法。
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