Relaxation Processes in Micromagnetics
Seiten
2007
Oxford University Press (Verlag)
978-0-19-852802-9 (ISBN)
Oxford University Press (Verlag)
978-0-19-852802-9 (ISBN)
This book throws some light on poorly understood aspects of the motion of magnetization in magnetic solids, particularly the effects of dissipative mechanisms. Aside from its practical aspects (such as magnetic recording), it addresses readers interested in the basic physics of nonlinear phenomena.
Electrons in solids behave like microscopic bar magnets, and in certain solids these align to produce macroscopic magnetizations. This book deals with the dynamics of this magnetization field. It addresses questions of microscopic mechanism only to the extent that residual interactions of the magnetic moments with other degrees of freedom of the host solid affect the dynamics, particularly the dissipative aspects. Several of these damping mechanisms are evaluated here for their effect on the equations of the magnetization dynamics. This dynamics is intrinsically nonlinear. This is important in the applications, particularly magnetic recording, which involves very large motion of the magnetization, well beyond the validity of linearized (small motion) approximations or limited extensions thereof. Therefore nonlinear solution methods are emphasized, but with only minimal use of numerical simulation. The book should be useful to practitioners of magnetic recording, and to physicists studying magnetic phenomena.
Electrons in solids behave like microscopic bar magnets, and in certain solids these align to produce macroscopic magnetizations. This book deals with the dynamics of this magnetization field. It addresses questions of microscopic mechanism only to the extent that residual interactions of the magnetic moments with other degrees of freedom of the host solid affect the dynamics, particularly the dissipative aspects. Several of these damping mechanisms are evaluated here for their effect on the equations of the magnetization dynamics. This dynamics is intrinsically nonlinear. This is important in the applications, particularly magnetic recording, which involves very large motion of the magnetization, well beyond the validity of linearized (small motion) approximations or limited extensions thereof. Therefore nonlinear solution methods are emphasized, but with only minimal use of numerical simulation. The book should be useful to practitioners of magnetic recording, and to physicists studying magnetic phenomena.
Professor Harry Suhl, Emeritus Department of Physics, University of California, San Diego, 9300 Gilman Drive, La Jolla, California 92093 - 0319
1. The Classical Magnetization Field ; 2. Small Motions of the Magnetization ; 3. Intrinsic Damping ; 4. Fluctuations ; 5. Magnetization Reversal in a Very Dilute Array of Small Particles ; 6. Magnetization Reversal in Arrays of Particles and Continuous Media
| Reihe/Serie | International Series of Monographs on Physics ; 133 |
|---|---|
| Zusatzinfo | numerous figures |
| Verlagsort | Oxford |
| Sprache | englisch |
| Maße | 162 x 242 mm |
| Gewicht | 449 g |
| Themenwelt | Naturwissenschaften ► Physik / Astronomie ► Elektrodynamik |
| Naturwissenschaften ► Physik / Astronomie ► Festkörperphysik | |
| Technik ► Elektrotechnik / Energietechnik | |
| ISBN-10 | 0-19-852802-7 / 0198528027 |
| ISBN-13 | 978-0-19-852802-9 / 9780198528029 |
| Zustand | Neuware |
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