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Hysteresis in model spin systems

Rao, M and Krishnamurthy, HR and Pandit, R (1989) Hysteresis in model spin systems. In: Journal of Physics: Condensed Matter, 1 (45). pp. 9061-9066.

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Official URL: http://iopscience.iop.org/0953-8984/1/45/030


The authors study the hysteretic response of model spin systems to periodic time-varying fields H(t) as a function of the amplitude H0 and the frequency Omega . At fixed H0, they find conventional, squarish hysteresis loops at low Omega , and rounded, roughly elliptical loops at high Omega , in agreement with experiment. For the O(N to infinity ), d=3, ( Phi 2)2 model with Langevin dynamics, they find a novel scaling behaviour for the area A of the hysteresis loop, of the form (valid for low fields) A approximately=H0066 Omega 0.33.

Item Type: Editorials/Short Communications
Publication: Journal of Physics: Condensed Matter
Publisher: Institute of Physics
Additional Information: Copyright of this article belongs to Institute of Physics.
Department/Centre: Division of Physical & Mathematical Sciences > Physics
Date Deposited: 19 Jul 2010 09:53
Last Modified: 19 Sep 2010 06:11
URI: http://eprints.iisc.ac.in/id/eprint/30367

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