INSIGNIFICANT NEXT NEAREST NEIGHBOR EFFECT IN Ni(II)-[2×2] GRID
作者： ALI BAYRI
DOI: 10.1142/S0217984906010937
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摘要: The Next Nearest Neighbor (NNN) effect in Ni2+-[2×2] using the isotropic Heisenberg model has been investigated this article. Although NNN is commonly very weak kind of grid, it was calculated that its response quite big to outsider perturbations certain regions. Two different antiferromagnetic arrangements spins interacting via exchange type a square were discussed terms their stability Using Hamiltonian, zero field energy spectrum for particular grid geometry. average magnetic moments with and without next nearest neighbors interactions also calculated. In order verify calculations, results compared experimental data which had published literature.
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