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  Low energy electron diffraction and photoelectron spectroscopy study of GaAs(113)A and (1¯1¯3¯)B surfaces prepared by molecular beam epitaxy and by ion bombardment and annealing

Setzer, C., Platen, J., Ranke, W., & Jacobi, K. (1999). Low energy electron diffraction and photoelectron spectroscopy study of GaAs(113)A and (1¯1¯3¯)B surfaces prepared by molecular beam epitaxy and by ion bombardment and annealing. Surface Science, 419(2-3), 291-302. doi:10.1016/S0039-6028(98)00807-3.

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Item Permalink: https://hdl.handle.net/21.11116/0000-0008-F37F-8 Version Permalink: https://hdl.handle.net/21.11116/0000-0008-F380-4
Genre: Journal Article

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 Creators:
Setzer, Carsten1, Author           
Platen, Jutta1, Author           
Ranke, Wolfgang1, Author           
Jacobi, Karl1, Author           
Affiliations:
1Physical Chemistry, Fritz Haber Institute, Max Planck Society, ou_634546              

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 Abstract: The GaAs (113)A and (1¯1¯3¯)B surfaces were prepared by molecular beam epitaxy (MBE) and ion bombardment and annealing (IBA). The surfaces were investigated in situ by means of low-energy electron diffraction and surface core-level (SCL) spectroscopy. Both orientations show 1×1 reconstructions after preparation with IBA. For the (113)A face a stable, 8×1 reconstructed surface was prepared by MBE. SCL shifts (SCLSs) are observed for As 3d (+0.53 eV) and Ga 3d (−0.46, +0.36 eV) which support a recently proposed model by Wassermeier et al. [Phys. Rev. B 51 (1995) 14721]. The (113)A(8×1) surface exhibits surface resonances at −1.0 and −3.8 eV below the valence band maximum. The dispersion of these resonances is only weak and does not follow the symmetry of the reconstructed surface. The (1¯1¯3¯)B surface shows {1¯1¯1¯} and {110} facets after preparation with MBE. This is confirmed by SCLSs for As 3d (−0.63, +0.57 eV).

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Language(s): eng - English
 Dates: 1998-06-291998-09-301999-01-04
 Publication Status: Issued
 Pages: 12
 Publishing info: -
 Table of Contents: -
 Rev. Type: Peer
 Identifiers: DOI: 10.1016/S0039-6028(98)00807-3
 Degree: -

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Title: Surface Science
  Abbreviation : Surf. Sci.
Source Genre: Journal
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Publ. Info: Amsterdam : Elsevier
Pages: 12 Volume / Issue: 419 (2-3) Sequence Number: - Start / End Page: 291 - 302 Identifier: ISSN: 0039-6028
CoNE: https://pure.mpg.de/cone/journals/resource/0039-6028