FIELD THEORY OF THE DISPLACIVE INCOMMENSURATE PHASE | Zendy

Ru Guo | Zendy; Zhenqing Yang | Zendy

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FIELD THEORY OF THE DISPLACIVE INCOMMENSURATE PHASE

Author(s) -

Ru Guo,

Zhenqing Yang

Publication year - 1984

Publication title -

acta physica sinica

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.199

H-Index - 47

ISSN - 1000-3290

DOI - 10.7498/aps.33.718

Subject(s) - limit (mathematics) , condensed matter physics , physics , harmonic , modulation (music) , field (mathematics) , phase (matter) , wave vector , materials science , quantum mechanics , mathematical analysis , mathematics , acoustics , pure mathematics

In this letter, we derive a multi-harmonic modulation solution of the incommensurate phase of a sinple model by a method like that used to solve pendulum problem in mechanics. This solution reduces to single-harmonic modulatioi at the of high temperature limit and transforms into kink solution at the of low temperature limit. The basic wave-vector decreases monotonously with temperature as observed in experiment.

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