L2 and L3 measurements of transition-metal 5d orbital occupancy, spin-orbit effects, and chemical bonding

Boyun Qi, I. Perez, P. H. Ansari, F. Lu, Mark Croft

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Abstract

We present L2 and L3 x-ray absorption spectroscopy measurements on all of the 5d transition-metal (T) elements and selected TAl2 intermetallic compounds. For the 5d elements we discuss the general trends in the strength of the near-edge "white-line" (WL) feature, the manifestations of the spin-orbit effects, and the dearth of WL strength for Pt and Au. The changes in the intensity of the L-edge WL's in the intermetallic compounds TAl2 (T=Au and Pt) are discussed in terms of strong T-Al chemical bonding. Interestingly, our results for this bonding in AuAl2 are in good agreement with the arguments presented by Pauling.

Original languageEnglish (US)
Pages (from-to)2972-2975
Number of pages4
JournalPhysical Review B
Volume36
Issue number5
DOIs
Publication statusPublished - Jan 1 1987

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All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics

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