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Recent Progress of the Low-Dimensional Spin-Wave Theory

Shoji Yamamoto
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Abstract

A modified spin-wave theory is developed and applied to low-dimensional quantum magnets. Double-peaked specific heat for one-dimensional ferrimagnets, nuclear spin-lattice relaxation in ferrimagnetic chains and clusters, and thermal behavior of Haldane-gap antiferromagnets are described within the scheme. Mentioning other bosonic and fermionic representations as well, we demonstrate that spin waves are still effective in low dimensions.

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Shoji Yamamoto. 2003-09-30. Recent Progress of the Low-Dimensional Spin-Wave Theory. https://arxiv.org/abs/cond-mat/0310004

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