Scanning Tunneling Microscopy and Spectroscopy Observation of Reduced BaTiO3(100) Surface
- 1 October 1995
- journal article
- Published by IOP Publishing in Japanese Journal of Applied Physics
- Vol. 34 (10A) , L1305
- https://doi.org/10.1143/jjap.34.l1305
Abstract
Microscopic structure and electronic states on the BaTiO3(100) single-crystal surfaces annealed in ultrahigh vacuum were observed by scanning tunneling microscopy and spectroscopy (STM/S). The surface step edges aligned preferentially along the [001] family of axes as the annealing temperature was increased. After annealing at temperatures above 800° C, spatial ordering of Ti 3d-oxygen vacancy complexes appeared on the surface. The STS spectra showed in-gap electronic states at about 1.0 eV below Fermi energy, which agreed well with the results of ultraviolet photoelectron spectroscopy previously reported.Keywords
This publication has 7 references indexed in Scilit:
- Structure and electronic states on reduced SrTiO3(110) surface observed by scanning tunneling microscopy and spectroscopyJournal of Vacuum Science & Technology B: Microelectronics and Nanometer Structures, 1995
- Structures and chemistry of the annealed SrTiO3(001) surfaceSurface Science, 1994
- Surface core-level shifts of barium observed in photoemission of vacuum-fractured(100)Physical Review B, 1993
- Surface Structure and Electronic Property of Reduced SrTiO3(100) Surface Observed by Scanning Tunneling Microscopy/SpectroscopyJapanese Journal of Applied Physics, 1993
- Ultraviolet Photoelectron Spectroscopy (UPS) and LEED Studies of BaTiO3 (001) and SrTiO3 (100) SurfacesPhysica Status Solidi (b), 1980
- Surface defects and the electronic structure of SrTisurfacesPhysical Review B, 1978
- LEED study of surface structures on the (001) face of BaTiO3Surface Science, 1971