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Effects of nonuniform Mn distribution in (Ga,Mn)As
Department of Physics, University of Karachi, Pakistan.
Chalmers University of Technology, Göteborg, Sweden.
Chalmers University of Technology, Göteborg, Sweden.
MAX-IV laboratory, Lund University, Sweden.
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2014 (English)In: Physical Review B Condensed Matter, ISSN 0163-1829, E-ISSN 1095-3795, Vol. 89, no 4, 1-5 p., 045312Article in journal (Refereed) Published
Abstract [en]

Resonant in situ photoemission from Mn 3d states in Ga(1−x)MnxAs is reported for Mn concentrations down to the very dilute level of 0.1%. Concentration-dependent spectral features are analyzed on the basis of first-principles calculations for systems with selected impurity positions as well as for random alloys. Effects of direct Mn-Mn interaction are found for concentrations as low as 2.5%, and are ascribed to statistical (nonuniform) distribution of Mn atoms.

Place, publisher, year, edition, pages
American Physical Society , 2014. Vol. 89, no 4, 1-5 p., 045312
National Category
Condensed Matter Physics
Research subject
Natural sciences
URN: urn:nbn:se:his:diva-9080DOI: 10.1103/PhysRevB.89.045312ISI: 000332298800006ScopusID: 2-s2.0-84897660307OAI: oai:DiVA.org:his-9080DiVA: diva2:717778
Available from: 2014-05-16 Created: 2014-05-16 Last updated: 2016-04-13Bibliographically approved

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