(2 × 1) Reconstructions of TiO(011) Revealed by Noncontact Atomic Force Microscopy and Scanning Tunneling Microscopy

Overview

Journal J Phys Chem C Nanomater Interfaces

Publisher American Chemical Society

Date 2014 Oct 14

PMID 25309642

Citations 3

Authors

Chi Lun Pang

Ayhan Yurtsever

Jo Onoda

Yoshiaki Sugimoto

Geoff Thornton

Affiliations

Soon will be listed here.

Abstract

We have used noncontact atomic force microscopy (NC-AFM) and scanning tunneling microscopy (STM) to study the rutile TiO(011) surface. A series of (2 × 1) reconstructions were observed, including two types of (4 × 1) reconstruction. High-resolution NC-AFM and STM images indicate that the (4 × 1)-α phase has the same structural elements as the more widely reported (2 × 1) reconstruction. An array of analogous higher-order (2 × 1) reconstructions were also observed where = 3-5. On the other hand, the (4 × 1)-β reconstruction seems to be a unique structure without higher-order analogues. A model is proposed for this structure that is also based on the (2 × 1) reconstruction but with additional microfacets of {111} character.

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