A Rotating-Valence-Bond scenario for the 2D Antiferromagnetic Heisenberg Model

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We propose that the valence bonds forming the ground state of the 2D-AF Heisenberg model on a square lattice may rotate under the effect of the antiferromagnetic background. To test this idea we apply a real space renormalization group approach to construct a rotating-valence-bond ground state anstaz. Our results are analytic and valid for any value of the spin S of the AF-magnet, which allow us to perfom semiclassical expansions of the energy and the staggered magnetization.
RevTex file, 3 pages, 3 PS figures available upon request

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Condensed Matter

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http://salesiana.dossiersoluciones.com/handle/123456789/27451

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/cond-mat/9601121
 http://arxiv.org/abs/cond-mat/9601121

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arXiv