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AuthorBrown, William Fuller. author
TitleMagnetoelastic Interactions [electronic resource] / by William Fuller Brown
ImprintBerlin, Heidelberg : Springer Berlin Heidelberg : Imprint: Springer, 1966
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Descript VIII, 156 p. online resource


The modern theory of ferromagnetic magnetization processes has from the beginning recognized the importance of magnetoelastic interยญ actions. Most of the magnetoelastic calculations, however, have been basecl on the theory developed by R. BECKER and others in the early 1930's. That theory has several defects; how to remedy them is the subject of this monograph. I first became aware of the shortcomings of the traditional theory thru a critical study of electric and magnetic forces, which I undcrtook as a member of the COULOMB'S Law Committee of the American Assoยญ ciation of Physics Teachers. My conclusions were published in 1951 in the American 10Z/rnal of Physics; an application of them to a problem in magnetostriction was published in 1953 in Reviews oflvlodern Physics. With the development, in 1956, of the "nucleation field" theory of micromagnetics, the need for a systematic and self-consistent theory of magnetoelastic interactions became more pressing. The traditional theory predicted that the nucleation field should differ negligibly from that of a rigid body; but my 1953 magnetostriction calculation suggested that terms omitted in that theory might be important. In the academic year 1963/64, 1 was finally able - thanks to a sabbatical furlough - to find the time needed for systematic development of a basic theory of magnetoelastic interactions in a ferromagnet


I Fundamental Concepts and Definitions -- 1. Introduction -- 2. Magnetostatic Fundamentals -- 3. Concepts of Elasticity Theory -- 4. Thermodynamic Principles -- II Force and Stress Relations in a Deformable Magnetic Material -- 5. The Forces in General -- 6. Equilibrium in a Magnetizable Elastic Solid -- III The Energy Method -- 7. Formal Theory -- 8. Terms in the Free Energy -- 9. The Small-Displacement Approximation -- IV Applications -- 10. The Magnetostriction of a Uniformly Magnetized Ellipsoid -- 11. Problems of Micromagnetics -- Appendix A -- The Variation of the Magnetic Self-Energy -- Appendix B -- Proof of the Magnetic Reciprocity Theorem (11.32) -- Appendix C -- On Angular Velocity -- References -- Author Index

Physics Physics Theoretical Mathematical and Computational Physics


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