| 钡铁氧体粒子反磁化研究 |
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| 引用本文： | 李晓红,魏福林,杨正. 钡铁氧体粒子反磁化研究[J]. 物理学报, 2001, 50(2): 324-328 |
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| 作者姓名： | 李晓红 魏福林 杨正 |
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| 作者单位： | 兰州大学磁性材料研究所,兰州730000 |
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| 摘 要： | 提出了钡铁氧体粒子反磁化的多扁椭球链模型,研究了形状各向异性、磁晶各向异性、层叠粒子数以及粒子间距对反磁化及其临界场、矫顽力的影响.此模型可用来解释取向钡铁氧体磁粉介质的反磁化机理.关键词：反磁化多扁椭球链模型
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| 关 键 词： | 反磁化 多扁椭球链模型 |
| 文章编号： | 1000-3290/2001/50(02)/0324-05 |
| 收稿时间： | 2000-07-13 |
| 修稿时间： | 2000-07-13 |
STUDY ON MAGNETIZATION REVERSAL OF BARIUM FERRITE PARTICLES |
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| LI XIAO-HONG,WEI Fu-lin,YANG ZHENG. STUDY ON MAGNETIZATION REVERSAL OF BARIUM FERRITE PARTICLES[J]. Acta Physica Sinica, 2001, 50(2): 324-328 |
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| Authors: | LI XIAO-HONG WEI Fu-lin YANG ZHENG |
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| Abstract: | A model of a chain of oblate ellipsoids is proposed for magnetization reversal of barium ferrite particles. The angular dependences of coercivity and critical field were calculated with the consideration of the uniaxial magnetocrystalline anisotropy, the shape anisotropy, the interaction anisotropy of the ellipsoids, as well as the number of ellipsoids. This model could be used to explain the magnetization reversal mechanism of the oriented Ba ferrite particulate media. |
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| Keywords: | magnetization reversal model of a chain of oblate ellipsoids |
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