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arXiv · 0907.1957

Hysteresis in Random Field XY and Heisenberg Models: Mean Field Theory and Simulations at Zero Temperature

Prabodh Shukla·R S Kharwanlang
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Abstract

We examine zero temperature hysteresis in random field XY and Heisenberg models in the zero frequency limit of a cyclic driving field. Exact expressions for hysteresis loops are obtained in the mean field approximation. These show rather unusual features. We also perform simulations of the two models on a simple cubic lattice and compare them with the predictions of the mean field theory.

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Prabodh Shukla, R S Kharwanlang. 2009-07-11. Hysteresis in Random Field XY and Heisenberg Models: Mean Field Theory and Simulations at Zero Temperature. https://doi.org/10.1103/physreve.81.031106

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