X-ray magnetic circular dichroism in d and f ferromagnetic materials: recent theoretical progress: Part I (Review Article)

摘要

The present state of theoretical understanding of the x-ray magnetic circular dichroism (XMCD) of 3d compounds is reviewed. Energy band theory based upon the local spin-density approximation (LSDA) describes the XMCD spectra of transition metal compounds reasonably well. Examples which we examine in detail are XPt{sub}3 compounds (with X=V, Cr, Mn, Fe, Co, and Ni) in the AuCu{sub}3 structure, the Heusler compounds Co{sub}2MnGe and Co{sub}2NbSn , and the compounds with noncollinear magnetic structure IrMnAl and Mn{sub}3ZnC. Recently achieved improvements for describing the electronic and magnetic structures of 3d compounds are discussed.