A unified approach to the interpretation of displacive and order–disorder systems. I. Thermodynamical aspect

DOI PDF 被引用文献4件
  • S. Aubry
    Département de Recherche Physique, Université Paris VI, Paris, France

書誌事項

公開日
1975-04-15
DOI
  • 10.1063/1.430872
公開者
AIP Publishing

この論文をさがす

説明

<jats:p>Some properties of a linear chain of harmonically coupled double wells are studied by the technique of the transfer operator. Exact values for the chain specific heat, the displacement probability density, and the first six even moments of the dynamical displacement correlation function are obtained. The model is shown to be a prototype for displacive as well as for order–disorder transitions depending on the strength of the harmonic coupling. Criteria for the harmonic behavior of the system are derived. By this method, it was not possible to find the exact form of the dynamical correlation functions for very anharmonic cases; this is so in general for order–disorder systems, but also for a small wave vector and temperature region in displacive systems.</jats:p>

収録刊行物

被引用文献 (4)*注記

もっと見る

詳細情報 詳細情報について

問題の指摘

ページトップへ