Hysteresis in random-fieldXYand Heisenberg models: Mean-field theory and simulations at zero temperature
نویسندگان
چکیده
منابع مشابه
Hysteresis in random-field XY and Heisenberg models: mean-field theory and simulations at zero temperature.
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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ژورنال
عنوان ژورنال: Physical Review E
سال: 2010
ISSN: 1539-3755,1550-2376
DOI: 10.1103/physreve.81.031106