# A phenomenological theory of damping in ferromagnetic materials

@article{Gilbert2004APT,
title={A phenomenological theory of damping in ferromagnetic materials},
author={Thomas L. Gilbert},
journal={IEEE Transactions on Magnetics},
year={2004},
volume={40},
pages={3443-3449}
}
• T. Gilbert
• Published 8 November 2004
• Materials Science
• IEEE Transactions on Magnetics
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…
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