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Identification of extrinsic Mn contributions in Ga1-xMnxAs by field-dependent magnetic circular X-ray dichroism

  • We combine sensitivity to atomic number, chemical shifts, probing depth, and magnetic order in a field- dependent magnetic circular X-ray dichroism study at the Mn L-edge of the diluted ferromagnetic semiconductor Ga1-xMnxAs and observe different Mn constituents: ferromagnetic Mn with an n(d) > 5 lineshape and paramagnetic Mn with distinct n(d) = 5 lineshape. The paramagnetic Mn is assigned to interstitials with surface segregation tendency. (c) 2005 Elsevier B.V. All rights reserved

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Metadaten
Author:Oliver Rader, K. Fauth, C. Gould, C. Ruster, G. M. Schott, G. Schmidt, K. Brunner, Laurens W. Molenkamp, G. Schutz, F. Kronast, H. A. Durr, W. Eberhardt, Wolfgang Gudat
ISSN:0368-2048
Document Type:Article
Language:English
Year of first Publication:2005
Year of Completion:2005
Release Date:2017/03/24
Source:Journal of Electron Spectroscopy and Related Phenomena. - ISSN 0368-2048. - 144 (2005), S. 789 - 792
Organizational units:Mathematisch-Naturwissenschaftliche Fakultät / Institut für Physik und Astronomie
Peer Review:Referiert
Institution name at the time of publication:Mathematisch-Naturwissenschaftliche Fakultät / Institut für Physik