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

German Sierra·Miguel A. Martin-Delgado
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Abstract

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.

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German Sierra, Miguel A. Martin-Delgado. 1996-01-25. A Rotating-Valence-Bond scenario for the 2D Antiferromagnetic Heisenberg Model. https://arxiv.org/abs/cond-mat/9601121

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