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