(17) A SPIN-OSCILLATOR COUPLED APPROXIMATION FOR THE STATICS AND DYNAMICS OF A FOURTH ORDER ANHARMONIC LATTICE

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Abstract

We derive the dynamic correlation matrix for a fourth order anharmonic lattice. A selfconsistent Ising spin-oscillator coupled approximation is introduced and shown to yield a static susceptibility in qualitative agreement with the exact result for a non-interacting system. Extensions of the approximation to dynamics, and to a J-dimensional lattice of interacting oscillators are discussed.

Journal

  • 物性研究

    物性研究 33(5), E43-E52, 1980-02-20

    物性研究刊行会

Codes

  • NII Article ID (NAID)
    110006535428
  • NII NACSIS-CAT ID (NCID)
    AN0021948X
  • Text Lang
    ENG
  • Article Type
    Journal Article
  • ISSN
    05252997
  • Data Source
    NII-ELS  IR 
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