Theory of Antiferromagnetism and Antiferromagnetic Resonance Absorption, II

Abstract

Resonance absorpiion of microwaves by antiferromagnetic· substanct.� will be discussed by ex­ tendg Kiltel's theory of ferr.omagnetic resonance absorption. Assuming the model proposed in Part I, it follows that there appears a broad resonance absorption peak below the Curie point for a powder specimen, qualitatively similar to that observed by Trounson and others for Cr203, al­ though the observed ordinary paramagnetic resonance cannot be predicted, probably due to an over­ simplified assumption for tbe equation of motion,