Soliton spin excitations in a Heisenberg helimagnet

M. Daniel and J. Beula
Authors registered in the RePEc Author Service: Daniel Moise

Chaos, Solitons & Fractals, 2009, vol. 41, issue 4, 1842-1848

Abstract: We propose a new model for a helimagnet in analogy with the cholesteric liquid crystal and investigate its non-linear spin dynamics in the semi-classical limit. The study reveals that for specific parametric choices, the elementary spin excitations along the helical axis are governed by soliton modes. A multiple scale perturbation analysis on the more general non-integrable case shows that the helicity does not alter the velocity and amplitude of the soliton, but introduces some fluctuations in the localised region of the soliton.

Date: 2009
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Citations: View citations in EconPapers (1)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:chsofr:v:41:y:2009:i:4:p:1842-1848

DOI: 10.1016/j.chaos.2008.07.033

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