In situ reduction of (100) SrTiO3

Authors
Gonzalez, MSM Aguirre, MH Moran, E Alario-Franco, MA Perez-Dieste, V Avila, J Asensio, MC
Citation
Msm. Gonzalez et al., In situ reduction of (100) SrTiO3, SOLID ST SC, 2(5), 2000, pp. 519-524
Citations number
20
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
SOLID STATE SCIENCES
ISSN journal
12932558 → ACNP
Volume
2
Issue
5
Year of publication
2000
Pages
519 - 524
Database
ISI
SICI code
1293-2558(200008/09)2:5<519:ISRO(S>2.0.ZU;2-#
Abstract
Low energy electron diffraction (LEED) and photoelectron spectroscopy (PES) have been employed to study the (100) SrTiO3 surface annealed in ultra hig h vacuum. The annealing was performed up to 830 degrees C. After annealing at 830 degrees C, we have observed from PES spectra the appearance of the c onduction band and from LEED patterns the (root 5 x root 5)R 26.6 degrees s uperstructure. Both Features seem to have the same origin: the ordering of oxygen vacancies. (C) 2000 Editions scientifiques et medicales Elsevier SAS . All rights reserved.