Effects of M=Si, Ga and Al for Co substitution on the electronic properties of RCo4M as probed by XPS
Autor(en): | Laslo, A. Dudric, R. Neumann, M. Isnard, O. Coldea, M. Pop, V. |
Stichwörter: | ANISOTROPY; AUGER PARAMETER; CRYSTAL; DIFFRACTION; Electronic structure; INTERMETALLIC COMPOUNDS; Local magnetic moments; M=AL; MAGNETIC-PROPERTIES; METALS; Physics; Physics, Condensed Matter; PR; RARE-EARTH; XPS | Erscheinungsdatum: | 2014 | Herausgeber: | PERGAMON-ELSEVIER SCIENCE LTD | Enthalten in: | SOLID STATE COMMUNICATIONS | Band: | 199 | Startseite: | 43 | Seitenende: | 46 | Zusammenfassung: | The electronic properties of RCo5-xMx (R=Er, Sm, Tin; M=Si, Ga, Al; x=0 and 1) compounds were investigated by X-ray photoelectron spectroscopy (XPS). The study was focused on the Co 3s exchange splitting, the valence bands and chemical shifts of the elements from the analyzed compounds. The Co 2p(3/2) core-level chemical shifts were described by means of the Auger parameters and Wagner plot. The hybridization between the R 5d6s and M 3sp and 4sp states and Co 3d states leads to a partial filling of the Co 3d band and to a decrease of the Co magnetic moments in comparison with the value in pure Co metal, in good agreement with the magnetic measurements. (C) 2014 Elsevier Ltd. All rights reserved. |
ISSN: | 00381098 | DOI: | 10.1016/j.ssc.2014.08.016 |
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geprüft am 07.06.2024