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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NSTL
Elsevier
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.