V2EX reciprocal lattice

Reciprocal Lattice

定义 Definition

倒易晶格:在晶体学与固体物理中,用来表示晶体在波矢/动量空间(k 空间)中周期性的数学晶格。它与实空间的晶格互为“对偶”,常用于描述衍射条件布里渊区以及电子/声子在周期势场中的行为。(该术语也常与“倒易空间 reciprocal space”一起出现。)

发音 Pronunciation (IPA)

/rsprkl lts/

例句 Examples

A reciprocal lattice helps explain why crystals produce sharp diffraction peaks.
倒易晶格有助于解释为什么晶体会产生尖锐的衍射峰。

In X-ray diffraction, the Bragg condition can be expressed elegantly using reciprocal lattice vectors and the Ewald construction.
在 X 射线衍射中,布拉格条件可以用倒易晶格矢量与埃瓦尔德作图法更简洁地表达。

词源 Etymology

reciprocal 来自拉丁语 reciprocus,意为“相互的、往返的、互为对应的”;lattice 源自中古法语 lattis,本义与“格栅、网格结构”相关。在晶体学中,“reciprocal lattice(倒易晶格)”强调它与实空间晶格之间的相互对应/对偶关系:个用于描述空间中的周期排列,另一个用于描述频率、波矢或衍射中的周期结构。

相关词 Related Words

文学与典籍 Literary Works

  • Introduction to Solid State Physics(Charles Kittel)
  • Solid State Physics(Neil W. Ashcroft & N. David Mermin)
  • Elements of X-Ray Diffraction(B. D. Cullity & S. R. Stock)
  • International Tables for Crystallography(国际晶体学表)
  • The Feynman Lectures on Physics(Richard P. Feynman 等;在波与衍射/晶体相关内容中常涉及倒易空间与倒易晶格思想)
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