V2EX metal-insulator transition

Metal-Insulator Transition

定义 Definition

metal-insulator transition 指材料在外界条件(如温度、压力、掺杂、磁场或强电子关联作用)变化时,电学性质从金属态(可自由导电)转变为绝缘体态(导电性显著降低)或反向转变的现象。固体物理与凝聚态物理中常见,典型类型包括 Mott 转变(电子-电子相互作用主导)与 Anderson 转变(无序/局域化主导)等。

发音 Pronunciation (IPA)

/mtl nsjuletr trnzn/

例句 Examples

The metal-insulator transition happens near 340 K in this material.
这种材料在接近 340 K 时发生金属绝缘体转变。

By tuning pressure and doping, researchers can drive a metal-insulator transition, revealing how electron correlations reshape the material’s band structure.
通过调控压力与掺杂,研究人员可以驱动金属绝缘体转变,从而揭示电子关联如何重塑材料的能带结构。

词源 Etymology

该术语由三部分构成:metal(金属)+ insulator(绝缘体)+ transition(转变),字面意思即“从金属到绝体(或相反)的相变/转变”。在凝聚态物理的发展中,它逐渐成为描述材料导电机制改变的核心术语,尤其与 Mott 对强关联体系的研究密切相关。

相关词 Related Words

文献与作品 Literary Works

  • Nevill F. Mott:《Metal-Insulator Transitions》以“Mott 金属-绝缘体转变”为核心的经典专著。
  • M. Imada, A. Fujimori, Y. Tokura:“Metal-insulator transitions”(Reviews of Modern Physics, 1998)广为引用的综述论文,系统讨论多类金属绝缘体转变。
  • Charles Kittel:《Introduction to Solid State Physics》固体物理经典教材中对相关导电机制与转变现象有介绍。
  • N. W. Ashcroft & N. D. Mermin:《Solid State Physics》在能带、输运与相互作用背景下涉及金属与绝缘体及其转变问题。
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