Oxidation kinetics in La0.67Ba0.33MnO3-delta epitaxy on SrTiO3 (001) during pulsed-laser deposition

Authors
Zhu, XD Si, WD Xi, XX Li, Q Jiang, QD Medici, MG
Citation
Xd. Zhu et al., Oxidation kinetics in La0.67Ba0.33MnO3-delta epitaxy on SrTiO3 (001) during pulsed-laser deposition, APPL PHYS L, 74(23), 1999, pp. 3540-3542
Citations number
12
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
APPLIED PHYSICS LETTERS
ISSN journal
00036951 → ACNP
Volume
74
Issue
23
Year of publication
1999
Pages
3540 - 3542
Database
ISI
SICI code
0003-6951(19990607)74:23<3540:OKILEO>2.0.ZU;2-2
Abstract
Using an oblique-incidence optical reflectance difference technique, we stu dy the kinetics of La0.67Ba0.33MnO3-delta (LBMO) epitaxy on SrTiO3(001) dur ing pulsed-laser deposition. By monitoring the recovery of the optical resp onse function from one-monolayer-deposited LBMO, we found that under the co nditions studied, the epitaxy was rate limited by the oxidation of the as-d eposited monolayer with an activation barrier of 1 eV/atom or 23 kcal/mol. The result reveals the origin of oxygen deficiency often found in manganite thin films. (C) 1999 American Institute of Physics. [S0003-6951(99)03723-7 ].