Comparative study of the thermal fluctuations effects on the classical Stoner–Wohlfarth and analytical vector hysteron models

作者: E. De Biasi , C.A. Ramos , R.D. Zysler

DOI: 10.1016/J.JMMM.2013.10.031

关键词: Condensed matter physicsField (physics)Thermal fluctuationsPhysicsStoner–Wohlfarth modelMagnetic fieldAnisotropyCoercivityMagnetizationMagnetic anisotropy

摘要: Abstract In this work we present a comparative study of the classical Stoner Wohlfarth model and analytical vector hysteron model. We analyze hysteretic behavior description when thermal fluctuations are included. found different in evolution coercive field as function temperature for anisotropy easy axis is non-parallel to magnetic orientation. At low temperatures plateau observed consequence switching behavior. high both models give identical magnetization behavior, which merges with superparamagnetic approximation.

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