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Magnetic circular dichroism in X-ray fluorescence of Heuseler alloys at threshold excitation
Russian Academy of Sciences-Ural Division,Yekaterinburg .
Russian Academy of Sciences-Ural Division,Yekaterinburg .
Russian Academy of Sciences-Ural Division,Yekaterinburg .
Russian Academy of Sciences-Ural Division,Yekaterinburg .
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2001 (English)In: Solid State Communications, ISSN 0038-1098, E-ISSN 1879-2766, Solid State Communications, ISSN ISSN 0038-1098, EISSN 1879-2766, Vol. 117, no 2, 79-82 p.Article in journal (Refereed) Published
Abstract [en]

The results of fluorescence measurements of magnetic circular dichroism (MCD) in Mn L2,3 X-ray emission and absorption for Heusler alloys NiMnSb and Co2MnSb are presented. Very intense resonance Mn L3 emission is found at the Mn 2p3/2 threshold and attributed to a peculiarity of the threshold excitation in materials with a half-metallic character of the electronic structure. The excitation energy dependence of Mn L2,3 X-ray emission spectra (XES) was measured at beamline ID12B at the European Synchrotron Radiation Facility (ESRF, Grenoble) using 83% circularly polarized X-rays. A very large MCD effect found in XES is attributed to strong exchange splitting of spin-up and spin-down Mn 3d states. The anomalously high ratio of L2 emission intensity to L3 emission intensity is found.

Place, publisher, year, edition, pages
2001. Vol. 117, no 2, 79-82 p.
Keyword [en]
A. Magnetically ordered materials; D. Electronic states (localized); D. Recombination and trapping; E. Synchrotron radiation; E. X-ray emission
National Category
Natural Sciences
Identifiers
URN: urn:nbn:se:liu:diva-54978DOI: 10.1016/S0038-1098(00)00415-4OAI: oai:DiVA.org:liu-54978DiVA: diva2:312890
Available from: 2010-04-26 Created: 2010-04-26 Last updated: 2017-12-12Bibliographically approved

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Magnuson, Martin

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CiteExportLink to record
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  • apa
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