Recent theories of ferromagnetism

Recent advances in ferromagnetic theory, which are outlined briefly in this article, are concerned principally with the effect of elastic deformation on magnetic properties and the related magnetostriction. This is the ninth of a series of special articles reviewing contemporary advances in several of the more important and rapidly advancing fields of science that are of especial interest to electrical engineers, and prepared under sponsorship of the A.I.E.E. committee on education.