The role of gas-phase oxidation and combination during laser deposition of YBa2Cu3O7-xin ambient oxygen
- 1 July 1995
- journal article
- Published by IOP Publishing in Superconductor Science and Technology
- Vol. 8 (7) , 529-533
- https://doi.org/10.1088/0953-2048/8/7/008
Abstract
Spectroscopic absorption and emission measurements have been used to study laser deposition of YBCO films. They show that >95% of the monatomic Y and Ba initially ablated from the target undergo gas-phase chemical combination before film deposition. In contrast, considerable monatomic Cu persists into the deposition region. In this region, equilibrated gas temperatures are of the order of 2700 K. It is suggested that this high temperature facilitates film crystallization and epitaxial growth. The survival of monatomic Cu in the plume to the site of deposition is a manifestation of its endothermic reaction with O2.Keywords
This publication has 23 references indexed in Scilit:
- A quantitative investigation of emission from low temperature laser-induced YBa2Cu3Ox plasma plumesJournal of Applied Physics, 1995
- Absorption and emission spectra of the YBCO laser plumeJournal of Superconductivity, 1994
- Emission studies of the plume produced during YBa2Cu3O7 film production by laser ablationJournal of Applied Physics, 1994
- Imaging of the Fluorescence Created by Ablation of Y2O3, BaO2, CuO, and YBa2Cu3O7–x by 308-nm Laser LightApplied Spectroscopy, 1993
- The yttrium oxide chemiluminescence from the 308 nm excimer laser ablation of YBa2Cu3O7−X, Y2O3, and YCl3Journal of Applied Physics, 1993
- Gas-phase oxidation of copper during laser ablation of YBa2Cu3O7−δ in different oxidizing ambientsApplied Physics Letters, 1993
- Fast intensified-CCD photography of YBa2Cu3O7−x laser ablation in vacuum and ambient oxygenApplied Physics Letters, 1992
- Optical absorption spectroscopy study of the role of plasma chemistry in YBa2Cu3O7 pulsed laser depositionApplied Physics Letters, 1991
- Dynamics of excimer laser ablation of superconductors in an oxygen environmentApplied Physics Letters, 1990
- Optical spectroscopy: An i n s i t u diagnostic for pulsed laser deposition of high T c superconducting thin filmsApplied Physics Letters, 1989