Magnetic splitting in x-ray photoelectron spectroscopy Cr L spectra of Fe2CrAl, Co2CrAl and Cu2CrAl

Autor(en): Slebarski, A
Neumann, M
Schneider, B
Stichwörter: HEUSLER ALLOYS; MOMENTS; PHOTOEMISSION; Physics; Physics, Condensed Matter
Erscheinungsdatum: 2001
Herausgeber: IOP PUBLISHING LTD
Journal: JOURNAL OF PHYSICS-CONDENSED MATTER
Volumen: 13
Ausgabe: 23
Startseite: 5515
Seitenende: 5518
Zusammenfassung: 
We have investigated various Cr-based Heusler alloys using core-level x-ray photoelectron spectroscopy (XPS). Of special interest are the 2p XPS lines, which always exhibit magnetic splitting in the case of the existence of a well-defined local magnetic moment at the transition metal site. The Cr 2p XP spectra, however, do not exhibit this exchange splitting for the nonmagnetic Cu2CrAl sample and for Fe2CrAl or Co2CrAl alloys with a magnetic moment at the Cr sites of about 1.6 mu (B). This behaviour is discussed here.
ISSN: 09538984
DOI: 10.1088/0953-8984/13/23/310

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