Relaxation Processes in Micromagnetics

Hardcover | June 21, 2007

byHarry Suhl

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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 themagnetic 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 isimportant 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 ofnumerical simulation. The book should be useful to practitioners of magnetic recording, and to physicists studying magnetic phenomena.

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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 themagnetic moments with other degrees of freed...

Professor Harry Suhl, Emeritus Department of Physics, University of California, San Diego, 9300 Gilman Drive, La Jolla, California 92093 - 0319

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Format:HardcoverDimensions:208 pages, 9.21 × 6.14 × 0.66 inPublished:June 21, 2007Publisher:Oxford University PressLanguage:English

The following ISBNs are associated with this title:

ISBN - 10:0198528027

ISBN - 13:9780198528029

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Table of Contents

1. The Classical Magnetization Field2. Small Motions of the Magnetization3. Intrinsic Damping4. Fluctuations5. Magnetization Reversal in a Very Dilute Array of Small Particles6. Magnetization Reversal in Arrays of Particles and Continuous Media

Editorial Reviews

`... a very timely topic, presented by one of the best known and respected practitioners in the field.'Peter Dobson, University of Oxford