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Effects of nonuniform Mn distribution in (Ga,Mn)As

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Author

  • I. Ulfat
  • J. Kanski
  • L. Ilver
  • Janusz Sadowski
  • K. Karlsson
  • A. Ernst
  • L. Sandratskii

Summary, in English

Resonant in situ photoemission from Mn 3d states in Ga1-xMnxAs 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.

Department/s

Publishing year

2014

Language

English

Publication/Series

Physical Review B (Condensed Matter and Materials Physics)

Volume

89

Issue

4

Document type

Journal article

Publisher

American Physical Society

Topic

  • Natural Sciences
  • Physical Sciences

Status

Published

ISBN/ISSN/Other

  • ISSN: 1098-0121