Multiscale analysis of magnetization dynamics driven by external fields

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作者：
Dimian, M. [1 ,2 ]
Mayergoyz, I.D. [3 ]
Bertotti, G. [4 ]
Serpico, C. [5 ]
机构：
[1] Department of Electrical and Computer Engineering, University of Maryland, College Park, MD 20742
[2] Max Planck Institute for Mathematics in the Sciences, Inselstrasse 22, D 04103, Leipzig, Germany
[3] Department of Electrical and Computer Engineering, UMIACS, University of Maryland, College Park, MD 20742
[4] IEN Galileo Ferraris, strada delle Cacce 91, 10135 Torino, Italy
[5] Dipartimento di Ingegneria Elettrica, Universita di Napoli Frederico II, via Claudio 21, 80125 Napoli, Italy
来源：
Journal of Applied Physics | 2006年 / 99卷 / 08期
关键词：
The multiscale approach to the magnetization dynamics driven by external magnetic fields is presented. In this approach; the Landau-Lifshitz equations are represented in an equivalent form; where the magnetic free energy is used as one of the state variables. This form clearly separates fast and slow dynamics and; consequently; it can be used for the development of perturbation and multiple scale techniques. Several applications of this approach to the precessional magnetization switching are discussed. © 2006 American Institute of Physics;
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