SURFACE-STRUCTURE OF THE MOST OXYGEN-DEFICIENT MAGNELI PHASE - AN STMSTUDY OF TI4O7

Authors
NORENBERG H BRIGGS GAD
Citation
H. Norenberg et Gad. Briggs, SURFACE-STRUCTURE OF THE MOST OXYGEN-DEFICIENT MAGNELI PHASE - AN STMSTUDY OF TI4O7, Surface science, 404(1-3), 1998, pp. 738-741
Citations number
17
Categorie Soggetti
Chemistry Physical
Journal title
Surface science → ACNP
ISSN journal
00396028
Volume
404
Issue
1-3
Year of publication
1998
Pages
738 - 741
Database
ISI
SICI code
0039-6028(1998)404:1-3<738:SOTMOM>2.0.ZU;2-M
Abstract
Non-stoichiometric TiO2 forms a range of crystalline structures known as Magneli phases TinO2n-1. TiO2(110) single crystals have been anneal ed and the surface structure was investigated by scanning tunnelling m icroscopy (STM). From the surface topography seen in the STM images th e existence of large Ti4O7 regions are established. They are formed by crystallographic shear and lead to a stepped surface. The contrast in the STM images indicates a possible anisotropy of conductivity. (C) 1 998 Elsevier Science B.V. All rights reserved.