AVS 53rd International Symposium
    Surface Science Thursday Sessions
       Session SS-ThP

Paper SS-ThP5
Surface Conduction Measurement on SrTiO@sub 3@ (110) by a UHV-Compatible Microprober

Thursday, November 16, 2006, 5:30 pm, Room 3rd Floor Lobby

Session: Surface Science Poster Session
Presenter: H. Bando, AIST, Japan
Authors: H. Bando, AIST, Japan
Y. Aiura, AIST, Japan
I. Konishi, Ibaraki University, Japan
A. Urata, International Servo Data Corp., Japan
Y. Nishihara, Ibaraki University, Japan
Correspondent: Click to Email
SrTiO@sub 3@ (110) surface shows metallic character after annealing in UHV at relatively low temperature, @<=@ 1073 K, until the surface is exposed to O@sub 2@ at room temperature. The surface metallic electronic states had been confirmed by our previous work by photoelectron spectroscopy, scanning tunneling microscopy/spectroscopy, and in situ surface conduction measurement. The (110) surface has an anisotropic structure, with Ti-O chains parallel to [001]. An Ultra-High Vacuum compatible microprober was employed to assess how the structural anisotropy affects the electronic surface conduction on the SrTiO@sub 3@ (110). The result was understood in terms of the arrangement of the Ti-3d orbitals.