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Title: Oxidation of the Fe(110) surface: An Fe{sub 3}O{sub 4}(111)/Fe(110) bilayer

Abstract

The oxidation state and magnetic behavior of in situ oxidized Fe(110) surfaces has been studied using x-ray absorption spectroscopy and magnetic circular dichroism (MCD). Low-energy electron diffraction has been used to monitor the surface atomic structure. At high oxygen exposures, the system is unambiguously identified as an Fe{sub 3}O{sub 4}(111)/Fe(110) bilayer. The MCD results show that the Fe{sub 3}O{sub 4} overlayer is magnetically coupled (antiparallel) to the Fe substrate. This picture is in contrast to a previous report, which claims the formation of an FeO(111) overlayer with a reconstructed magnetic surface [Phys. Rev. Lett. 77, 3921 (1996)]. (c) 2000 The American Physical Society.

Authors:
 [1];  [1];  [1]
  1. National Synchrotron Light Source, Brookhaven National Laboratory, Upton, New York 11973 (United States)
Publication Date:
OSTI Identifier:
20216778
Resource Type:
Journal Article
Journal Name:
Physical Review. B, Condensed Matter and Materials Physics
Additional Journal Information:
Journal Volume: 61; Journal Issue: 22; Other Information: PBD: 1 Jun 2000; Journal ID: ISSN 1098-0121
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; IRON; OXIDATION; IRON OXIDES; MAGNETIC PROPERTIES; X-RAY SPECTRA; ABSORPTION SPECTRA; ELECTRON DIFFRACTION; MAGNETIC CIRCULAR DICHROISM; SURFACES; EXPERIMENTAL DATA

Citation Formats

Kim, H.-J., Park, J.-H., and Vescovo, E. Oxidation of the Fe(110) surface: An Fe{sub 3}O{sub 4}(111)/Fe(110) bilayer. United States: N. p., 2000. Web. doi:10.1103/PhysRevB.61.15284.
Kim, H.-J., Park, J.-H., & Vescovo, E. Oxidation of the Fe(110) surface: An Fe{sub 3}O{sub 4}(111)/Fe(110) bilayer. United States. doi:10.1103/PhysRevB.61.15284.
Kim, H.-J., Park, J.-H., and Vescovo, E. Thu . "Oxidation of the Fe(110) surface: An Fe{sub 3}O{sub 4}(111)/Fe(110) bilayer". United States. doi:10.1103/PhysRevB.61.15284.
@article{osti_20216778,
title = {Oxidation of the Fe(110) surface: An Fe{sub 3}O{sub 4}(111)/Fe(110) bilayer},
author = {Kim, H.-J. and Park, J.-H. and Vescovo, E.},
abstractNote = {The oxidation state and magnetic behavior of in situ oxidized Fe(110) surfaces has been studied using x-ray absorption spectroscopy and magnetic circular dichroism (MCD). Low-energy electron diffraction has been used to monitor the surface atomic structure. At high oxygen exposures, the system is unambiguously identified as an Fe{sub 3}O{sub 4}(111)/Fe(110) bilayer. The MCD results show that the Fe{sub 3}O{sub 4} overlayer is magnetically coupled (antiparallel) to the Fe substrate. This picture is in contrast to a previous report, which claims the formation of an FeO(111) overlayer with a reconstructed magnetic surface [Phys. Rev. Lett. 77, 3921 (1996)]. (c) 2000 The American Physical Society.},
doi = {10.1103/PhysRevB.61.15284},
journal = {Physical Review. B, Condensed Matter and Materials Physics},
issn = {1098-0121},
number = 22,
volume = 61,
place = {United States},
year = {2000},
month = {6}
}