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arXiv · 0807.1071

Effective Theory of Magnetization Plateaux in the Shastry-Sutherland Lattice

A. Abendschein·S. Capponi
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Abstract

We use the non-perturbative Contractor-Renormalization method (CORE) in order to derive an effective model for triplet excitations on the Shastry-Sutherland lattice. For strong enough magnetic fields, various magnetization plateaux are observed, e.g. at 1/8, 1/4, 1/3 of the saturation, as found experimentally in a related compound. Moreover, other stable plateaux are found at 1/9, 1/6 or 2/9. We give a critical review of previous works and try to resolve some apparent inconsistencies between various theoretical approaches.

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A. Abendschein, S. Capponi. 2008-12-01. Effective Theory of Magnetization Plateaux in the Shastry-Sutherland Lattice. https://doi.org/10.1103/physrevlett.101.227201

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