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arXiv · 0809.5249

Magnetization Process of the Classical Heisenberg Model on the Shastry-Sutherland Lattice

M. Moliner·D. C. Cabra·A. Honecker·P. Pujol·F. Stauffer
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Abstract

We investigate classical Heisenberg spins on the Shastry-Sutherland lattice and under an external magnetic field. A detailed study is carried out both analytically and numerically by means of classical Monte-Carlo simulations. Magnetization pseudo-plateaux are observed around 1/3 of the saturation magnetization for a range of values of the magnetic couplings. We show that the existence of the pseudo-plateau is due to an entropic selection of a particular collinear state. A phase diagram that shows the domains of existence of those pseudo-plateaux in the $(h, T)$ plane is obtained.

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M. Moliner, D. C. Cabra, A. Honecker, P. Pujol, F. Stauffer. 2009-04-03. Magnetization Process of the Classical Heisenberg Model on the Shastry-Sutherland Lattice. https://doi.org/10.1103/physrevb.79.144401

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