Direct observation of orbital magnetism in cubic solids

We present x-ray magnetic circular dichroism determinations of the orbital/spin magnetic moment ratios of dilute 3d-series impurities in Au (and Cu) host matrices. This is the first direct measurement of considerable orbital moments in cubic symmetry for a localized impurity in a bulk metal host. It...

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Bibliographic Details
Published inPhysical review letters Vol. 93; no. 7; p. 077205
Main Authors Brewer, W D, Scherz, A, Sorg, C, Wende, H, Baberschke, K, Bencok, P, Frota-Pessôa, S
Format Journal Article
LanguageEnglish
Published United States 13.08.2004
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Summary:We present x-ray magnetic circular dichroism determinations of the orbital/spin magnetic moment ratios of dilute 3d-series impurities in Au (and Cu) host matrices. This is the first direct measurement of considerable orbital moments in cubic symmetry for a localized impurity in a bulk metal host. It is shown that the unquenching of orbital magnetism depends on a delicate balance of hybridization effects between the local impurity with the host and the filling of the 3d states of the impurity. The results are accompanied by ab initio calculations that support our experimental findings.
ISSN:0031-9007
DOI:10.1103/physrevlett.93.077205