CoCr-based alloys: Pt and Ta induced magnetic moments probed by X-ray magnetic circular dichroism

X‐ray magnetic circular dichroic measurements on polycrystalline CoCrPt and CoCrPtTa alloys are reported. A sizeable Pt induced magnetic moment of about 0.2μB/atom is probed in both alloys. The Pt magnetic moment is ferromagnetically coupled to the one of Co. The Ta magnetic moment is much smaller,...

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Bibliographic Details
Published in:Physica status solidi. A, Applied research Applied research, 2004-12, Vol.201 (15), p.3243-3246
Main Authors: Poulopoulos, P., Wilhelm, F., Kapaklis, V., Jaouen, N., Angelakeris, M., Rogalev, A., Politis, C.
Format: Article
Language:English
Subjects:
75.20.Hr
78.70.Dm
Exact sciences and technology
Physics
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Summary:X‐ray magnetic circular dichroic measurements on polycrystalline CoCrPt and CoCrPtTa alloys are reported. A sizeable Pt induced magnetic moment of about 0.2μB/atom is probed in both alloys. The Pt magnetic moment is ferromagnetically coupled to the one of Co. The Ta magnetic moment is much smaller, of about only 0.03μB/atom, and it is oriented antiparallel to the Co moment. The orbital magnetic moment mL of Pt (Ta) is parallel (antiparallel) to the spin magnetic moment mS, that is both elements in these samples fulfill the third Hund's rule. (© 2004 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)
ISSN:0031-8965
1521-396X
DOI:10.1002/pssa.200405426