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Hysteresis in random-fieldXYand Heisenberg models: Mean-field theory and simulations at zero temperature

Prabodh Shukla, R. S. Kharwanlang
2010 Physical Review E  

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2009 pre-print arXiv:0907.1957v1 fatcat:pjk25u6mkrffnfwmcfarrgrpaq

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2010 accepted
arXiv:0907.1957v2 fatcat:dczrgs2aqjef7dshry7jz5g43e
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.
doi:10.1103/physreve.81.031106 pmid:20365696 fatcat:vfmhf6jinfhvph5guebitigpai
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Prabodh Shukla, R. S. Kharwanlang. "Hysteresis in random-fieldXYand Heisenberg models: Mean-field theory and simulations at zero temperature." Physical Review E 81.3 (2010)