Magnetic phase diagram of the S=1/2 antiferromagnetic zigzag spin chain in the strongly frustrated region: cusp and plateau

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We determine the magnetic phase diagram of the antiferromagnetic(AF) zigzag spin chain in the strongly frustrated region, using the density matrix renormalization group method. We find the magnetization plateau at 1/3 of the full moment accompanying the spontaneous symmetry breaking of the translation, the cusp singularities above and/or below the plateau, and the even-odd effect in the magnetization curve. We also discuss the formation mechanisms of the plateau and cusps briefly.
4 pages, 8 figures, revised version, to appear in J.Phys.Soc.Jpn

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Statistical Mechanics, Strongly Correlated Electrons

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http://salesiana.dossiersoluciones.com/handle/123456789/99254

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/cond-mat/0211458
 http://arxiv.org/abs/cond-mat/0211458
 J. Phys. Soc. Jpn. 72 (2003) 479
 doi:10.1143/JPSJ.72.479

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arXiv