Theory of q-soliton and phase boundary dynamics in a (2+1)-dimensional O(3)-antiferromagnet

A. Holz and Changde Gong

Physica A: Statistical Mechanics and its Applications, 1989, vol. 161, issue 3, 476-507

Abstract: The classical antiferromagnet is studied in the approximation of a continuous (2+1)-dimensional O(3)-model supplemented by a system of phase slip boundaries. Antiferromagnetic ordering at T > 0 is supposed to be destroyed by dynamic effects of theq-soliton plasma on the phase boundary network. Dynamic effects are studied via Lorentz invariance of the action, where phason speed c replaces the light speed. A qualitative theory of the action of translating and rotating q-solitons and mobile phase boundaries as well as a quantization of these objects is developed.

Date: 1989
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Persistent link: https://EconPapers.repec.org/RePEc:eee:phsmap:v:161:y:1989:i:3:p:476-507

DOI: 10.1016/0378-4371(89)90438-X

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