k‐q Functions and the Landau Theory of Second‐Order Phase Transitions

Research output: Contribution to journalArticle

Abstract

The use of k‐q functions is introduced into the Landau theory of second order phase transitions. The expansion of an arbitrary density function in a crystal is given in terms of basis functions of irreducible representations of a space group which are linear combinations of k‐q functions. This leads to a new condition on the irreducible representations which can be associated with second order phase transitions.

Original languageEnglish (US)
Pages (from-to)343-349
Number of pages7
Journalphysica status solidi (b)
Volume76
Issue number1
DOIs
StatePublished - Jul 1 1976

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Phase transitions
Probability density function
Crystals
expansion
crystals

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

Cite this

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abstract = "The use of k‐q functions is introduced into the Landau theory of second order phase transitions. The expansion of an arbitrary density function in a crystal is given in terms of basis functions of irreducible representations of a space group which are linear combinations of k‐q functions. This leads to a new condition on the irreducible representations which can be associated with second order phase transitions.",
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k‐q Functions and the Landau Theory of Second‐Order Phase Transitions. / Litvin, D. B.

In: physica status solidi (b), Vol. 76, No. 1, 01.07.1976, p. 343-349.

Research output: Contribution to journalArticle

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