Mg(0001) surface oxidation: A two-dimensional oxide phase

Elsebeth Schröder, Roman Fasel, and Adam Kiejna
Phys. Rev. B 69, 193405 – Published 21 May 2004
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Abstract

First-principles electronic structure calculations and angle-scanned x-ray photoelectron diffraction experiments reveal the geometrical structure of the Mg(0001) surface upon oxidation. In contrast to previous studies of Mg(0001) oxidation and unlike the case of aluminum oxidation we determine a surface oxide structure, consisting of mixed oxygen-magnesium layers on top of an almost unchanged Mg(0001) surface. This unusual, directionally bound, surface oxide is locally formed already at very low dosing, corresponding to total coverages of 0.1 monolayer (ML), and grows laterally with increasing oxygen coverage up to at least 3 ML total coverage.

  • Received 16 March 2004

DOI:https://doi.org/10.1103/PhysRevB.69.193405

©2004 American Physical Society

Authors & Affiliations

Elsebeth Schröder1, Roman Fasel2, and Adam Kiejna3

  • 1Department of Applied Physics, Chalmers University of Technology and Göteborg University, SE-41296 Göteborg, Sweden
  • 2Swiss Federal Laboratories for Materials Testing and Research (EMPA), nanotech@surfaces Laboratory, Feuerwerkerstrasse 39, CH-3602 Thun, Switzerland
  • 3Institute of Experimental Physics, University of Wrocław, Plac M. Borna 9, PL-50-204 Wrocław, Poland

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Issue

Vol. 69, Iss. 19 — 15 May 2004

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