Remarks on the Volume Magnetostriction and the Anisotropic Forced Magnetostriction

Abstract

The manner in which the anisotropic forced magnetostriction contributes to the magnetostriction of ferromagnetic substances at high-magnetic fields is discussed theoretically. In the past, the isotropic forced volume magnetostriction has been considered to be the only cause of the forced magnetostriction. This is probably one reason for the discrepancies between the experimental value of the volume magnetostriction and the theoretical value expected from the pressure dependence of the Curie point, etc. In addition to this, the limitations of the present theory concerning the relation between the isotropic volume magnetostriction and the related properties mentioned above are briefly examined in connection with the discrepancies between experiment and theory.