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Spin-Wave Description of Haldane-gap antiferromagnets

Shoji Yamamoto·Hiromitsu Hori
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Abstract

Modifying the conventional antiferromagnetic spin-wave theory which is plagued by the difficulty of the zero-field sublattice magnetizations diverging in one dimension, we describe magnetic properties of Haldane-gap antiferromagnets. The modified spin waves, constituting a grand canonical bosonic ensemble so as to recover the sublattice symmetry, not only depict well the ground-state correlations but also give useful information on the finite-temperature properties.

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BibTeXRIS

Shoji Yamamoto, Hiromitsu Hori. 2003-02-05. Spin-Wave Description of Haldane-gap antiferromagnets. https://doi.org/10.1143/jpsj.72.769

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