A vector model for off-axis hysteresis loops using anisotropy field

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• 作者：Ali Jamali^a ; ^{alijamal@gwu.edu" class="auth_mail" title="E-mail the corresponding author} ; Edward Della Torre^a ; Ermanno Cardelli^b ; Hatem ElBidweihy^c ; Lawrence H. Bennett^a
• 关键词：Hysteresis modeling ; Preisach modeling ; Stoner&ndash ; Wohlfarth model ; Uniaxial anisotropy
• 刊名：Physica B: Physics of Condensed Matter
• 出版年：2016
• 出版时间：15 November 2016
• 年：2016
• 卷：501
• 期：Complete
• 页码：113-116
• 全文大小：1054 K

文摘

A model for the off-axis vector magnetization of a distribution of uniaxial particles is presented. Recent work by the authors decomposed the magnetization into two components and modeled the total vector magnetization as their vector sum. In this paper, to account for anisotropy, the direction of the reversible magnetization component is specified by the vector sum of the applied field and an effective anisotropy field. The formulation of the new anisotropy field (AF) model is derived and its results are discussed considering (i) oscillation and rotational modes, (ii) lag angle, and (iii) unitary magnetization. The advantages of the AF model are outlined by comparing its results to the results of the classical Stoner–Wohlfarth model.