期刊
IEEE TRANSACTIONS ON MAGNETICS
卷 40, 期 6, 页码 3443-3449出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TMAG.2004.836740
关键词
ferromagnetic damping; ferromagnetic materials; magnetic core memories; magnetic domains; magnetic losses; magnetic recording; magnetization processes
In 1955, a phenomenological theory of ferromagnetism was well established and had been corroborated by a considerable amount of experimental data. However, there were problems in the phenomenological theory of the dynamics of the magnetization field. The Landau-Lifshitz equation for damping of the motion of the magnetization field could not account for the large noneddy-current damping in thin Permalloy sheets. The problem undertaken herein is a reformulation of the theory in a way that is more consistent with the theory of damping in other physical systems in order to be able to take large damping into account.
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