Magnetic Structure and NMR signal of Spin Peierls Solitons

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We compute the magnetic profile of spin Peierls solitons in a simple Heisenberg model with magneto elastic couplings, using independently the DMRG method and the Hartree Fock approximation. Our results agree qualitatively with published NMR data provided we average over the spin profiles. We conclude that he dynamics of the spin plus lattice system must be included in a more detailed theory of the spin Peierls transition in CuGeO.
7 pages, 6 figures

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Strongly Correlated Electrons

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http://salesiana.dossiersoluciones.com/handle/123456789/28113

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/cond-mat/9802245
 http://arxiv.org/abs/cond-mat/9802245

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arXiv