Article ID Journal Published Year Pages File Type
1808238 Physica B: Condensed Matter 2016 8 Pages PDF
Abstract

We study the dynamics of a Heisenberg helimagnet by presenting a square lattice model and proposing the Hamiltonian associated with it. The corresponding equation of motion is constructed after averaging the Hamiltonian using a suitable wavefunction. The stability of the spin wave is discussed by means of Modulational Instability (MI) analysis. The influence of various types of inhomogeneities in the lattice is also investigated by improving the model.

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Related Topics
Physical Sciences and Engineering Physics and Astronomy Condensed Matter Physics
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A nonlinear lattice model for Heisenberg helimagnet and spin wave instabilities
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