V2EX magnetic susceptibility

Magnetic Susceptibility

Definition|释义

magnetic susceptibility磁化率(磁易感率);表示材料在外加磁场作用下被磁化的“容易程度”。常用符号 χ,在许多情况下可近似理解为“磁化强度与外加磁场之比”。不同材料可表现为抗磁性、顺磁性或铁磁性等(对应不同大小与符号的 χ)。

Pronunciation (IPA)|发音(IPA)

/mntk ssptblti/

Examples|例句

The magnetic susceptibility of copper is very small.
铜的磁化率非常小。

By measuring magnetic susceptibility across temperatures, researchers can infer phase transitions in the material.
通过测量不同温度下的磁化率,研究人员可以推断材料发生了相变。

Etymology|词源

magnetic 来自 magnet(磁铁/磁石),其更早源头与古希腊语中对“磁石”的称呼有关;susceptibility 来自拉丁语词根,含义是“可被影响/易受影响的性质”。合起来,magnetic susceptibility 字面意思就是“对磁性影响的易受程度”,在物理学中被规范化为描述材料磁响应的参数。

Literary Works|文学与经典著作中的出现

  • The Feynman Lectures on Physics(《费曼物理学讲义》):在物质的磁性章节中讨论磁化、顺磁/抗磁行为与相关量(常涉及磁化率概念)。
  • Classical Electrodynamics by J. D. Jackson(《经典电动力学》):在介质与物质响应的讨论中使用并定义与磁化率相关的量。
  • Solid State Physics by Ashcroft & Mermin(《固体物理》):在电子与晶体的磁性部分系统使用磁化率(如居里定律、泡利顺磁等)。
  • Introduction to Electrodynamics by David J. Griffiths(《电动力学导论》):在物质中的磁场与磁化章节中引入磁化率与相关关系式。
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