کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
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1860858 | 1037461 | 2011 | 5 صفحه PDF | دانلود رایگان |
A comparative analysis between linear and non-linear energy barriers used for modeling statistical thermally-excited ferromagnetic systems is presented. The linear energy barrier is obtained by new symmetry considerations about the anisotropy energy and the link with the non-linear energy barrier is also presented. For a relevant analysis we compare the effects of linear and non-linear energy barriers implemented in two different models: Preisach–Néel and Ising–Metropolis. The differences between energy barriers which are reflected in different coercive field dependence of the temperature are also presented.
► The linear energy barrier is obtained from symmetry considerations.
► The linear and non-linear energy barriers are calibrated and implemented in Preisach–Néel and Ising–Metropolis models.
► The temperature and time effects of the linear and non-linear energy barriers are analyzed.
Journal: Physics Letters A - Volume 375, Issue 39, 12 September 2011, Pages 3478–3482