Interacting spin-wave dispersion relatio
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E. Solano-Carrillo; R. Franco; J. Silva-Valencia
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Article
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2010
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Elsevier Science
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English
โ 318 KB
We study the effect of crystal-field anisotropy on the dispersion relations of mixed-spin (S, s) alternating chains by using the interacting spin-wave theory and the density-matrix renormalization group algorithm. For the easy-plane anisotropy case we find that the spin-wave results fail to describe