A thermodynamic approximation of the groundstate of antiferromagnetic Heisenberg spin-1/2 lattices

G.I. Tielen, P.L. Iske, W.J. Caspers

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    Abstract

    The exact ground state of finite Heisenberg spin−1/2 lattices isstudied. The coefficients of the so-called Ising configurations contributing to the ground state are approximated by Boltzmann-like expressions. These expressions contain a parameter that may be related to an inverse temperature.
    Original languageEnglish
    Pages (from-to)507-512
    Number of pages5
    JournalPhysica A
    Volume173
    Issue number3
    DOIs
    Publication statusPublished - 1991

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