Eur. Phys. J. B 2, 1-3 (1998)
https://doi.org/10.1007/s100510050218

Observation of magnetic splitting in XPS MnL-spectra of Co2 MnSn and Pd2MnSn Heusler alloys

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

Corresponding author: ^a stplogma@fb4-301.physik.uni-osnabrueck.de

Received: 31 October 1997
Revised: 28 November 1997
Accepted: 18 December 1997
Published online: 15 March 1998

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.