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Surface states on GaN(000(1)over-bar)(1x1) - an angle-resolved photoemission study

In English

Författare

  • BJ Kowalski
  • RJ Iwanowski
  • Janusz Sadowski
  • J Kanski
  • I Grzegory
  • S Porowski

Summary, in English

We present the results of angle-resolved photoemission studies on the (0 0 0 (1) over bar) (N-polar) surface of bulk gallium nitride crystals. The bulk and surface band Structure was investigated along Gamma-A and Gamma-K-M directions on the surface with (1 x 1) symmetry. The sets of spectra were obtained in normal and off-normal emission for the surface prepared by Ar+ ion sputtering and annealing and for the same surface enriched with Ga under molecular beam epitaxy conditions. The bulk and surface related features were identified by analysis of the acquired experimental data and by comparison with the results of band structure Calculations.

Publiceringsår

2002

Språk

Engelska

Sidor

186-191

Publikation/Tidskrift/Serie

Surface Science

Volym

507

Dokumenttyp

Artikel i tidskrift

Förlag

Elsevier

Ämne

  • Natural Sciences
  • Physical Sciences

Nyckelord

  • surface potential
  • function
  • angle resolved photoemission
  • surface electronic phenomena (work
  • surface states
  • etc.)
  • gallium nitride
  • single crystal surfaces

Status

Published

ISBN/ISSN/Övrigt

  • ISSN: 0039-6028