Open AccessFIELD THEORY OF THE DISPLACIVE INCOMMENSURATE PHASE
Author(s) -
Rong Guo,
Zhenqing Yang
Publication year - 1984
Publication title -
wuli xuebao
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.