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Spin-Wave Description of Haldane-gap antiferromagnets | | Shoji Yamamoto
; Hiromitsu Hori
; | | Date: |
18 Oct 2002 | | Subject: | Statistical Mechanics; Strongly Correlated Electrons | cond-mat.stat-mech cond-mat.str-el | | 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. | | Source: | arXiv, cond-mat/0210399 | | Services: | Forum | Review | PDF | Favorites | |
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