nd - m at . m tr l - sc i ] 1 8 A pr 2 00 4 Growth and spin - resolved photoelectron spectroscopy of the MgO / Fe ( 110 ) system

نویسندگان

  • Yu. S. Dedkov
  • M. Fonin
  • G. Güntherodt
  • U. Rüdiger
چکیده

Electronic and structural properties of ultrathin MgO layers grown on epi-taxial Fe(110) films were investigated at room temperature by means of spin-resolved photoelectron spectroscopy, Auger-electron spectroscopy, and low energy electron diffraction. The spin polarization at the Fermi level of the Fe(110) film decreases abruptly with increasing thickness of MgO layer up to 7 ˚ A. This behavior is attributed to the formation of a thin FeO layer at the MgO(111)/Fe(110) interface, attenuating the intrinsic spin polarization.

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تاریخ انتشار 2004