首页|Nonlinear spin excitations in a Heisenberg antiferromagnet with NNN and D-M interactions

Nonlinear spin excitations in a Heisenberg antiferromagnet with NNN and D-M interactions

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Spin deviation vs site number in an inhomogeneous (site dependent) antiferromagnet incorporating next nearest neighbour (NNN) and Dzyaloshinski-Moriya (D-M) interactions along with nearest neighbour and anisotropic interactions is investigated. In this context, a model Hamiltonian for 1D inhomogeneous antiferromagnetic spin system with site dependent inhomogenities is constructed. Glauber coherent state representation along with H-P representation is applied to derive the Heisenberg equation of motion. The dynamics in the continuum level is investigated using the Sine-Cosine (SC) function method and the results are analysed graphically.

SolitonHeisenberg antiferromagnetic spin systemH-P representationSOLITON EXCITATIONSCHAINFERROMAGNETMAGNONSWAVES

Jeyaseeli, A. Jarlet、Latha, M. M.

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Womens Christian Coll

2022

Physica

Physica

ISSN:0921-4526
年,卷(期):2022.640
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