| Post-annealing effect on the electronic structure of Mn atoms in Ga(1-x)Mn(x)As probed by resonant inelastic x-ray scattering. | |
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MedLine Citation:
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PMID: 22251602 Owner: NLM Status: In-Data-Review |
Abstract/OtherAbstract:
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The electronic structure of as-grown and post-annealed Ga(1-x)Mn(x)As epilayers (x≈0.055) has been investigated using resonant inelastic x-ray scattering. Mn L(2,3) x-ray emission spectra show that the integral intensity ratio of Mn L(2) to L(3) emission lines increases with annealing temperature and comes close to that of manganese oxide. The oxygen K-emission/absorption spectra of post-annealed Ga(0.945)Mn(0.055)As show 1.5-3.0 times higher degree of oxidation on the film surface than that of the as-grown sample. These experimental findings are attributed to the diffusion of Mn impurity atoms from interstitial positions in the GaAs host lattice to the surface where they are passivated by oxygen. |
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Authors:
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G S Chang; E Z Kurmaev; L D Finkelstein; H K Choi; W O Lee; Y D Park; T M Pedersen; A Moewes |
Publication Detail:
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Type: Journal Article Date: 2007-02-02 |
Journal Detail:
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Title: Journal of physics. Condensed matter : an Institute of Physics journal Volume: 19 ISSN: 0953-8984 ISO Abbreviation: J Phys Condens Matter Publication Date: 2007 Feb |
Date Detail:
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Created Date: 2012-01-18 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 101165248 Medline TA: J Phys Condens Matter Country: England |
Other Details:
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Languages: eng Pagination: 076215 Citation Subset: - |
Affiliation:
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Department of Physics and Engineering Physics, University of Saskatchewan, 116 Science Place, Saskatoon, SK, S7N 5E2, Canada. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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