Spin-resolved photoelectron spectroscopy of the MgO/Fe(110) system | Zendy

Yuriy Dedkov | Zendy; M. Fonin | Zendy; U. Rüdiger | Zendy; G. Güntherodt | Zendy

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Spin-resolved photoelectron spectroscopy of the MgO/Fe(110) system

Author(s) -

Yuriy Dedkov,

M. Fonin,

U. Rüdiger,

G. Güntherodt

Publication year - 2005

Publication title -

applied physics a

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.485

H-Index - 149

eISSN - 1432-0630

pISSN - 0947-8396

DOI - 10.1007/s00339-005-3447-2

Subject(s) - x ray photoelectron spectroscopy , auger electron spectroscopy , scanning tunneling microscope , spin polarization , fermi level , spectroscopy , chemistry , low energy electron diffraction , thin film , electron , condensed matter physics , materials science , analytical chemistry (journal) , electron diffraction , diffraction , nuclear magnetic resonance , nanotechnology , optics , physics , quantum mechanics , chromatography , nuclear physics

The surface structure and electronic properties of ultrathin MgO layers grown on epitaxial Fe(110) films were investigated at room temperature by means of electron diffraction, Auger electron spectroscopy, scanning tunneling microscopy, and spin-resolved photoelectron spectroscopy. The spin polarization at the Fermi level (EF) of the Fe(110) film decreases sharply with increasing thickness of the MgO layer. This behavior arises from the formation of a thin FeO layer at the MgO(111)/Fe(110) interface, as revealed by structural and spectroscopic investigations. The strong attenuation of the intrinsic spin polarization is qualitatively attributed to the scattering of spin-polarized electrons at the unoccupied d-orbitals of Fe2+.

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