Abstract
Experimental studies on PRM (Kinoshita 1968) are discussed theoretically on the basis of a multiaxial single domain model developed in a previous paper (Nagata and Kinoshita, 1965) in which irreversible rotation of the spontaneous magnetization vector Is of individual ferromagnetic fine grains of the specimen at a certain value of external compressional stress is taken into account to explain the acquisition of PRM.
It is assumed that the external stress exerted on a specimen is a purely uniaxial compressional stress whose intensity varies from grain to grain, in the from of Gaussian distribution. PRM versus pressure and PRM versus external magnetic field relations are qualitatively well explained by the single domain model.
