IN-SITU OPTICAL INVESTIGATION OF OXYGEN DIFFUSION PROFILES IN SRTIO3

Authors
DENK I TRAUB U NOLL F MAIER J
Citation
I. Denk et al., IN-SITU OPTICAL INVESTIGATION OF OXYGEN DIFFUSION PROFILES IN SRTIO3, Berichte der Bunsengesellschaft fur Physikalische Chemie, 99(6), 1995, pp. 798-801
Citations number
23
Categorie Soggetti
Chemistry Physical
Journal title
Berichte der Bunsengesellschaft fur Physikalische Chemie
ISSN journal
00059021 → ACNP
Volume
99
Issue
6
Year of publication
1995
Pages
798 - 801
Database
ISI
SICI code
0005-9021(1995)99:6<798:IOIOOD>2.0.ZU;2-7
Abstract
The time evolution of oxygen stoichiometry profiles in Fe-doped SrTiO3 single crystals has been detected and analyzed in-situ using an optic al absorption technique. The profiles can be fitted according to Fick' s second law by a constant chemical diffusion coefficient. The data ob tained are in good agreement with earlier results from integral detect ion techniques and can be quantitatively understood by including the i nfluence of internal coupling reactions to bare ambipolar transport vi a short range interaction.