V2EX ferroelectric

Ferroelectric

定义 Definition

铁电的;铁电体的(ferroelectric):指一种材料在没有外加电场时也能保持自发极化(内部正负电荷中心不重合),并且这种极化方向可在外加电场作用下可逆翻转。常用于电容器、传感器、存储器等。另有相关名词用法:ferroelectric (material) 指“铁电材料/铁电体”。

发音 Pronunciation (IPA)

/frolktrk/

例句 Examples

Ferroelectric materials are used in sensors.
铁电材料被用于传感器中。

When the temperature drops below the Curie point, the crystal can become ferroelectric, showing a switchable polarization under an applied electric field.
当温度降到居里点以下,晶体可能变成铁电体,并在外加电场下表现出可切换的极化。

词源 Etymology

ferro- 原意与“铁”有关(源自拉丁语 ferrum,意为“铁”),在物理学中常借用于表示类似“铁磁(ferromagnetic)”那样的“自发、有滞回、可翻转”的性质;electric 来自“电”。因此 ferroelectric 并不一定含铁,而是强调材料具有类似铁磁体的“自发极化与电滞回”特征。

相关词 Related Words

文献与著作中的用例 Notable Works

  • Principles and Applications of Ferroelectrics and Related Materials(M. E. Lines & A. M. Glass)
  • Ferroelectricity(F. Jona & G. Shirane)
  • Introduction to the Theory of Ferroelectricity(B. A. Strukov & A. P. Levanyuk)
  • Ferroelectric Materials for Energy Applications(编著类学术专著,多卷/多作者)
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