Springer LINK: The European Physical Journal B - Abstract Volume 2 Issue 1 (1998) pp 1-3

The European Physical Journal B

ISSN: 1434-6028 (printed version)
ISSN: 1434-6036 (electronic version)

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Abstract Volume 2 Issue 1 (1998) pp 1-3

rapid note: Observation of magnetic splitting in XPS MnL-spectra of Co$\sf_2$MnSn and Pd$\sf_2$MnSn Heusler alloys

Y.M. Yarmoshenko (1), M.I. Katsnelson (1), E.I. Shreder (1), E.Z. Kurmaev (1), A. Slebarski (3), S. Plogmann (2) (a), T. Schlathölter (2), J. Braun (2), M. Neumann (2)

(1) Institute of Metal Physics, Russian Academy of Sciences Ural Division, 620219 Yekatarinburg GSP-170, Russia
(2) Universität Osnabrück, Fachbereich Physik, Barbarastrasse 7, 49069 Osnabrück, Germany
(3) Institute of Physics, University of Silesia, 40-007 Katowice, Poland

Received: 31 October 1997 / Received in final form: 28 November 1997 / Accepted: 18 December 1997

Abstract: The XPS MnL-spectra of Co₂MnSn, a nearly half-metallic ferromagnet (HMF) and Pd₂MnSn were investigated. The most drastical feature of the spectra observed is the well-defined magnetic splitting of the Mn 2p_3/2, 2p_1/2 lines. This gives direct evidence of the existence of well-defined local magnetic moments in Heusler alloys in comparison with other itinerant-electron ferromagnets. The calculations of Mn2p XPS spectra of these materials were carried out using a fully relativistic generalization of the one-step model of photoemission and show excellent agreement with experiment.

PACS. 71.20.Be Transition metals and alloys - 75.20.Hr Local moments in compounds and alloys; Kondo effect, valence fluctuations, heavy fermions

(a) email: stplogma@fb4-301.physik.uni-osnabrueck.de

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