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Formation of epitaxial MnBi layers on (Ga,Mn)As

Författare:
Publiceringsår: 2009
Språk: Engelska
Sidor:
Publikation/Tidskrift/Serie: Physical Review B
Volym: 80
Nummer: 7
Dokumenttyp: Artikel
Förlag: American Physical Society

Sammanfattning

The initial growth of MnBi on MnAs-terminated (GaMn)As is studied by means of synchrotron-based photoelectron spectroscopy. From analysis of surface core-level shifts we conclude that a continued epitaxial MnBi layer is formed, in which the MnAs/MnBi interface occurs between As and Bi atomic planes. The well-defined 1×2 surface reconstruction of the MnAs surface is preserved for up to 2 ML of MnBi before clear surface degradation occurs. The MnBi layer appears to be free from intermixed As.

Disputation

Nyckelord

  • Physics and Astronomy
  • semimagnetic semiconductors
  • ferromagnetic materials
  • surface reconstruction
  • photoelectron spectra
  • metallic epitaxial layers
  • manganese compounds
  • manganese alloys
  • magnetic epitaxial layers
  • magnetisation
  • bismuth alloys
  • gallium arsenide
  • core levels

Övriga

Published
Yes
  • ISSN: 1098-0121

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