Magnetoelastic Interactions

1. Front Matter

   Pages I-VIII

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2. Fundamental Concepts and Definitions

   • William Fuller Brown Jr.

   Pages 1-49

3. Force and Stress Relations in a Deformable Magnetic Material

   • William Fuller Brown Jr.

   Pages 50-70

4. The Energy Method

   • William Fuller Brown Jr.

   Pages 71-107

5. Applications

   • William Fuller Brown Jr.

   Pages 107-136

6. Back Matter

   Pages 146-156

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The modern theory of ferromagnetic magnetization processes has from the beginning recognized the importance of magnetoelastic inter­ 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 Asso­ 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.

• Interactions
• Magnetoelastische Wechselwirkung
• Rigid body
• development
• elasticity
• equilibrium
• magnetization
• physics
• self-energy

• University of Minnesota, Minneapolis, USA

  William Fuller Brown

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