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Exact bounds on the critical frustration in the Shastry-Sutherland Model

Ute Löw·Erwin Müller-Hartmann
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Abstract

We discuss the phase diagram of the Shastry-Sutherland model for arbitrary spin S and derive rigorous lower and upper bounds on the phase boundaries of the dimer phase by using various versions of a variational ansatz in combination with the exact diagonalisation method.

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Ute Löw, Erwin Müller-Hartmann. 2001-04-20. Exact bounds on the critical frustration in the Shastry-Sutherland Model. https://arxiv.org/abs/cond-mat/0104385

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