Friedel's law
id:
friedel-s-law-324-172050
title:
Friedel's law
text:
Friedel's law, named after Georges Friedel, is a property of Fourier transforms of real functions. Given a real function f , its Fourier transform has the following properties. F = F ∗ where F ∗ is the complex conjugate of F . Centrosymmetric points are called Friedel's pairs. The squared amplitude is centrosymmetric: | F | 2 = | F | 2 The phase ϕ of F is antisymmetric: ϕ = − ϕ . Friedel's law is used in X-ray diffraction, crystallography and scattering from real potential within the Born approx
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wiki
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encyclopedia
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original url:
https://en.wikipedia.org/wiki/Friedel%27s_law
date created:
date modified:
2022-04-16T12:02:18Z
main entity:
{"identifier":"Q899242","url":"https://www.wikidata.org/entity/Q899242"}
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