Affiliation:
1. Laboratoire SERMEC, Faculté des Sciences et Techniques de Saint-Jérôme, 13397 Marseille cedex 20, France
Abstract
The morphology of α Al 2 O 3 surfaces annealed in vacuum has been investigated by reflection high energy electron diffraction (RHEED). We have studied two kinds of faces: (0001) and [Formula: see text]. The two faces behave differently. At high temperature the (0001) surface is unstable with only small facets and give evidence for variations of stoichiometry and structure with formation of an Al layer. The [Formula: see text] surfaces give large facets and the diffraction patterns are consistent with (2 × 1) surface structure.
Publisher
World Scientific Pub Co Pte Lt
Subject
Materials Chemistry,Surfaces, Coatings and Films,Surfaces and Interfaces,Condensed Matter Physics
Cited by
15 articles.
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