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

何兵 | Zendy; 应和平 | Zendy; 季达人 | Zendy

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

Author(s) -

何兵,

应和平,

季达人

Publication year - 1996

Publication title -

acta physica sinica

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.199

H-Index - 47

ISSN - 1000-3290

DOI - 10.7498/aps.45.522

Subject(s) - physics , antiferromagnetism , hamiltonian (control theory) , spin wave , heisenberg model , dispersion relation , canonical transformation , anisotropy , parity (physics) , ground state , quantum mechanics , condensed matter physics , ferromagnetism , mathematics , mathematical optimization , quantum

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.

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