Scanning tunneling microscopy study of the anatase (1 0 0) surface

• Published in: Surface science Vol. 529; no. 1; pp. L239 - L244
• Main Authors: Ruzycki, Nancy, Herman, Gregory S., Boatner, Lynn A., Diebold, Ulrike
• Format: Journal Article
• Language: English
• Published: Lausanne Elsevier B.V 01.04.2003; Amsterdam Elsevier Science; New York, NY
• Subjects: Condensed matter: structure, mechanical and thermal properties; Exact sciences and technology; Low index single crystal surfaces; Physics; Scanning tunneling microscopy; Solid surfaces and solid-solid interfaces; Surface relaxation and reconstruction; Surface structure and topography; Surface structure, morphology, roughness, and topography; Surfaces and interfaces; thin films and whiskers (structure and nonelectronic properties); Titanium oxide; Scanning tunneling microscopy; Surface relaxation and reconstruction; Surface structure, morphology, roughness, and topography; Titanium oxide; Low index single crystal surfaces; Transition elements Compounds; Rough surfaces; Surface topography; Experimental study; Structure relaxation; STM; Surface structure; Titanium oxides; Surface reconstruction; Crystal faces; LEED
• ISSN: 0039-6028; 1879-2758
• DOI: 10.1016/S0039-6028(03)00117-1

Scanning tunneling microscopy (STM) has been used to investigate the structure of the TiO 2 anatase (1 0 0) surface. Natural single crystals of anatase were employed; and after several cycles of sputtering and annealing at T=450 °C, the TiO 2(1 0 0) surface was free of impurities, and reconstructed to a (1× n) termination. No evidence for point defects was found in the atomic resolution STM images. The STM results were accounted for on the basis of a surface structure model in which (1 0 1)-oriented microfacets run along the anatase [0 1 0] direction.