Ablation of high-temperature superconductor studied by resonance ionization mass spectrometry (RIMS)
- 1 February 1991
- journal article
- Published by AIP Publishing in Journal of Applied Physics
- Vol. 69 (3) , 1654-1659
- https://doi.org/10.1063/1.347209
Abstract
Laser ablation of bulk high-temperature superconductor (HTS) material provides a useful means of producing high-quality HTS thin films. Mass spectrometric probes of the ablation plume provide a microscopic understanding of the ablation event and plume development as well as providing a process monitor for the thin-film production. Resonance ionization mass spectrometry (RIMS) detection of the ablated neutral species supplies valuable physical information about the ablation event necessary for developing models of the process. Time-of-flight/RIMS detection of Cu, Y, and BaO ablated from YBa2Cu3O7−x indicates the ablation involves post-desorption gas phase collisions, which influence the ablation chemistry and dynamics (e.g., angular and velocity distributions). Approximately equal velocities are observed for all neutral species at constant ablation laser fluence. In addition, BaO exhibits a rotational temperature far less than the directed translational temperature.This publication has 28 references indexed in Scilit:
- On the effect of Knudsen-layer formation on studies of vaporization, sputtering, and desorptionSurface Science, 1988
- Electronic transitions in surface and near-surface radiation effectsNuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, 1988
- Laser ionization mass spectrometry of YBa2Cu3O7−x superconductorsInternational Journal of Mass Spectrometry and Ion Processes, 1988
- Growth of thin films by laser-induced evaporationCritical Reviews in Solid State and Materials Sciences, 1988
- Selective photoionization of 64Cu in the presence of 63,65 CuNuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, 1987
- Laser mass-spectrometric studies of optical damage in CaF_2Journal of the Optical Society of America B, 1987
- Pulsed laser desorption for resonance ionization mass spectrometryAnalytical Chemistry, 1985
- Free-Jet Expansions from Laser-Vaporized Planar SurfacesAIAA Journal, 1977
- Dynamic sampling of laser-induced vapor plumes by mass spectrometryInternational Journal of Mass Spectrometry and Ion Physics, 1975
- The Band-Spectrum of Barium OxideProceedings of the Physical Society. Section A, 1950