| 铁磁180°畴层结构中的畴层振动模 |
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| 引用本文： | 李义兵,李兴教.铁磁180°畴层结构中的畴层振动模[J].华中科技大学学报(自然科学版),1992(1). |
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| 作者姓名： | 李义兵 李兴教 |
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| 作者单位： | 华中理工大学固体电子学系
(李义兵)，华中理工大学固体电子学系(李兴教) |
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| 摘 要： | 本文探讨了具有反平行磁化矢量的铁磁层状结构的磁畴振动谱,给出了普遍的色散方程.当外加磁场为零,整个分布成180°畴层状态时,给出了一般的色散曲钱.理论预言可能同时存在一种具有二维铁磁性和一维反铁磁性的新型磁有序材料.
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| 关 键 词： | 铁磁材料 畴层结构 有旋波 |
Domain Layer Vibration Modes in Ferromagnetic 180 Domains |
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| Li Yibing Li Xing jiao.Domain Layer Vibration Modes in Ferromagnetic 180 Domains[J].JOURNAL OF HUAZHONG UNIVERSITY OF SCIENCE AND TECHNOLOGY.NATURE SCIENCE,1992(1). |
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| Authors: | Li Yibing Li Xing jiao |
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| Institution: | Li Yibing Li Xing jiao |
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| Abstract: | It has been found recently that there exists antiferromagnetic exchange coupling between ferromagnetic films. Based on this finding, the magnetic domain vibration modes in a ferromagnetic domain structure with antiparallel magnetization are investigated. The general dispersion equations and dispersion band structures have been obtained and compared with those of antiferromagnets. In an antiferromagnet, the orientations of magnetic moment (spin) of adjacent lattices are opposite to each other, while in a magnetic domain structure, the magnetizations of adjacent domains are opposite in direction. Therefore, it will be easy to see that the vibration modes of the domain structure are similar to those of antiferromagnetic spin. It is predicted that a kind of new magnetic alloy ordered material with 2-D ferromagnetism and l-D antiferromagnetism might exist. |
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| Keywords: | ferromagnetic materials domain layer structures spin waves |
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