V2EX magnetoresistance

Magnetoresistance

释义 Definition

磁阻(效应):指材料的电阻在外加磁场作用下发生改变的现象。常见于金属、半导体及多层薄膜结构;在自旋电子学中尤为重要。(另有更具体的类型,如 giant magnetoresistance 等。)

发音 Pronunciation

/mnitorzstns/

例句 Examples

Magnetoresistance changes the resistance of a material in a magnetic field.
磁阻效应会使材料在磁场中电阻发生变化。

In modern sensors, magnetoresistance is used to detect tiny magnetic signals with high precision, improving data storage and navigation systems.
在现代传感器中,磁阻效应用于高精度探测微弱磁信号,从而提升数据存储与导航系统的性能。

词源 Etymology

由 **magneto-**(表示“磁、磁力的”)+ resistance(“电阻”)构成,字面意思就是“与磁相关的电阻(变化)”。该现象在19世纪已被研究,后来在多层薄膜材料中发展出更显著的形式(如巨磁阻),推动了硬盘读出头等技术进步。

相关词 Related Words

文献与作品 Literary Works

  • Introduction to Solid State Physics(Charles Kittel)中讨论磁性与输运性质时会涉及 magnetoresistance
  • Solid State Physics(Ashcroft & Mermin)在电输运与磁场效应相关章节中使用 magnetoresistance
  • Albert Fert 与 Peter Grünberg 等关于 giant magnetoresistance 的经典论文与诺奖相关综述中频繁出现该词。
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