Spin-resolved unoccupied density of states in epitaxial Heusler alloy films
Physical review B. Bd. 80. 2009 S. 20406-1 - 20406-4
Erscheinungsjahr: 2009
Publikationstyp: Zeitschriftenaufsatz (Forschungsbericht)
Sprache: Englisch
Doi/URN: 10.1103/PhysRevB.80.020406
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Inhaltszusammenfassung
We investigate the electronic properties of epitaxial Co2(FexMn1?x)Si, Co2Fe(Al1?xSix), and Co2(Cr0.6Fe0.4)Al films on MgO(100) substrates using circular dichroism in x-ray absorption spectroscopy (XMCD). Considering final-state electron correlations, the spin-resolved partial density of states at the Co atom can be extracted from XMCD data. The experimental results corroborate the predicted half-metallic ferromagnetic properties of these alloys and reveal a compositional dependence of the Fe...We investigate the electronic properties of epitaxial Co2(FexMn1?x)Si, Co2Fe(Al1?xSix), and Co2(Cr0.6Fe0.4)Al films on MgO(100) substrates using circular dichroism in x-ray absorption spectroscopy (XMCD). Considering final-state electron correlations, the spin-resolved partial density of states at the Co atom can be extracted from XMCD data. The experimental results corroborate the predicted half-metallic ferromagnetic properties of these alloys and reveal a compositional dependence of the Fermi energy position within the minority band gap.» weiterlesen» einklappen
Autoren
Klassifikation
DFG Fachgebiet:
Physik der kondensierten Materie
DDC Sachgruppe:
Physik
Verknüpfte Personen
- Gerhard Jakob
- Mitarbeiter/in
(Johannes Gutenberg-Universität Mainz)
- Hans-Joachim Elmers
- Mitarbeiter/in
(Institut für Physik)