AL2O3-ALPHA SURFACE-STRUCTURE CHARACTERIZATION BY RHEED

Authors
GILLET M BRUNA JC
Citation
M. Gillet et Jc. Bruna, AL2O3-ALPHA SURFACE-STRUCTURE CHARACTERIZATION BY RHEED, Surface review and letters, 5(1), 1998, pp. 325-329
Citations number
9
Categorie Soggetti
Physics, Condensed Matter","Physics, Atomic, Molecular & Chemical","Material Science
Journal title
Surface review and letters → ACNP
ISSN journal
0218625X
Volume
5
Issue
1
Year of publication
1998
Pages
325 - 329
Database
ISI
SICI code
0218-625X(1998)5:1<325:ASCBR>2.0.ZU;2-2
Abstract
The morphology of cu Al2O3 surfaces annealed in vacuum has been invest igated by reflection high energy electron diffraction (RHEED). We have studied two kinds of faces: (0001) and ((1) over bar 012). The two fa ces behave differently. At high temperature the (0001) surface is unst able with only small facets and give evidence for variations of stoich iometry and structure with formation of an Al layer. The ((1) over bar 012) surfaces give large facets and the diffraction patterns are cons istent with (2 x 1) surface structure.