V2EX diamagnetism

Diamagnetism

定义 Definition

抗磁性:一种物质在外加磁场中会产生与外磁场方向相反的微弱磁化效应,从而表现为被磁场轻微排斥的性质。几乎所有物质都具有一定的抗磁性,但通常很弱;在没有未成对电子的材料中更明显。

发音 Pronunciation

/damntzm/

例句 Examples

Diamagnetism causes some materials to be weakly repelled by a magnet.
抗磁性会使某些材料被磁铁轻微排斥。

Although subtle in most everyday substances, diamagnetism becomes important in explaining why superconductors can levitate above a magnetic track.
虽然在大多数日常物质中抗磁性并不明显,但它对于解释超导体为何能在磁轨上方悬浮非常重要。

词源 Etymology

来自 **dia-**(希腊语前缀,常表示“穿过、相对、对立”)+ magnet(磁、磁石)+ -ism(表示性质或学说的后缀),整体字面可理解为“与磁性相对的一种性质”,指在磁场中产生与外磁场相反方向的效应。

相关词 Related Words

文学与重要著作 Literary Works

  • The Feynman Lectures on Physics(Richard P. Feynman 等):在讨论物质的磁性来源时涉及抗磁性与相关机制。
  • Introduction to Solid State Physics(Charles Kittel):讲解固体中抗磁性、顺磁性与铁磁性的基本理论框架。
  • Principles of Physics(David Halliday, Robert Resnick, Jearl Walker):在电磁学与材料磁性章节中介绍抗磁性及其与其他磁性类型的对比。
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