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MnAs overlayer on GaN(000(1)under-bar)-(1 x 1) its growth, morphology and electronic structure

In English

Författare

  • BJ Kowalski
  • IA Kowalik
  • RJ Iwanowski
  • E Lusakowska
  • M Sawicki
  • Janusz Sadowski
  • I Grzegory
  • S Porowski

Summary, in English

MnAs layer has been grown by means of MBE on the GaN(000 (1) under bar)-(1 x 1) surface. Spontaneous formation of MnAs grains with a diameter of 30-60 nm (as observed by atomic force microscopy) occurred for the layer thickness bigger than 7 ML. Ferromagnetic properties of the layer with Curie temperature higher than 330 K were detected by SQUID measurements. Electronic structure of the system was investigated in situ by resonant photoemission spectroscopy for MnAs layer thickness of 1, 2, and 8 ML. Density of the valence band states of MnAs and its changes due to the increase in the layer thickness were revealed.

Publiceringsår

2004

Språk

Engelska

Sidor

645-650

Publikation/Tidskrift/Serie

Acta Physica Polonica. Series A: General Physics, Physics of Condensed Matter, Optics and Quantum Electronics, Atomic and Molecular Physics, Applied Physics

Volym

105

Issue

6

Dokumenttyp

Artikel i tidskrift

Förlag

Institute of Physics, Polish Academy of Sciences

Ämne

  • Natural Sciences
  • Physical Sciences

Status

Published

ISBN/ISSN/Övrigt

  • ISSN: 0587-4246