SPIN WAVE APPROACH FOR X-Y-Z MODEL——A STUDY OF THE ANISOTROPIC HEISENBERG ANTIFERROMAGNET

HE BING; YING HE-PING; JI DA-REN

doi:10.7498/aps.45.522

Abstract
A spin wave approach to study the anisotropic Heisenberg antiferromagnet is presented. By means of introducing a parity operator and canonical transformations, the Hamiltonian is diagonized, based on the Holstein-Primakoff transformation, to obtain dispersion relations of the spin waves. The terms of non-linear approximation effects for the ground state energy and the dispersion relations are also shown.
Authors and contacts
HE BING,

YING HE-PING,

JI DA-REN

1.
浙江近代物理中心,浙江大学,杭州310027
References

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[12]	WANG ZHI-GUO, DING GUO-HUI, XU BO-WEI. SPIN-PEIERLS TRANSITION OF THE ANTIFERROMAGNETIC CHAIN. Acta Physica Sinica, 1999, 48(2): 296-301. doi: 10.7498/aps.48.296
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[16]	ZHONG JIAN. SPIN WAVE SPECTRUM IN HEISENBERG ANTIFERRO-MAGNETIC SUPERLATTICES. Acta Physica Sinica, 1990, 39(3): 486-490. doi: 10.7498/aps.39.486
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[18]	KUANG YU-PING, WENG SHI-CHUN. THE SPIN WAVE THEORY OF FERROMAGNETIC ANISOTROPY IN CUBIC CRYSTALS. Acta Physica Sinica, 1964, 20(9): 890-908. doi: 10.7498/aps.20.890
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Vol. 45, Issue 3 - 1996-02-05

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SPIN WAVE APPROACH FOR X-Y-Z MODEL——A STUDY OF THE ANISOTROPIC HEISENBERG ANTIFERROMAGNET

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SPIN WAVE APPROACH FOR X-Y-Z MODEL——A STUDY OF THE ANISOTROPIC HEISENBERG ANTIFERROMAGNET

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