Difference between revisions of "Incommensurate modulated structure"
From Online Dictionary of Crystallography
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| − | <Font color="blue">Structure modulée incommensurable </font>(''Fr''). | + | <Font color="blue">Structure modulée incommensurable </font>(''Fr''). <Font color="black">Struttura modulata incommensurabile </font>(''It''). <Font color="purple">非整合変調構造 </font>(''Ja''). |
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== See also == | == See also == | ||
| − | [[Quasiperiodicity]] | + | *[[Quasiperiodicity]] |
[[Category:Fundamental crystallography]] | [[Category:Fundamental crystallography]] | ||
Revision as of 14:10, 15 May 2017
Structure modulée incommensurable (Fr). Struttura modulata incommensurabile (It). 非整合変調構造 (Ja).
An incommensurate modulated crystal structure is a modulated crystal structure, for which the modulation function has a Fourier transform of sharp peaks at wave vectors
that cannot all be expressed by rational coefficients in a basis of the reciprocal lattice of the basic structure. At least one of the components of the wave vectors of the modulation with respect to the basis structure should be irrational.