Influence of ionisation zone motion in high power impulse magnetron sputtering on angular ion flux and NbOx film growth
Abstract
Here, the ion energies and fluxes in the high power impulse magnetron sputtering plasma from a Nb target were analysed angularly resolved along the tangential direction of the racetrack. A reactive oxygen-containing atmosphere was used as such discharge conditions are typically employed for the synthesis of thin films. Asymmetries in the flux distribution of the recorded ions as well as their energies and charge states were noticed when varying the angle between mass-energy analyser and target surface. More positively charged ions with higher count rates in the medium energy range of their distributions were detected in +E x B than in -E x B direction, thus confirming the notion that ionisation zones (also known as spokes or plasma bunches) are associated with moving potential humps. The motion of the recorded negatively charged high-energy oxygen ions was unaffected. NbOx thin films at different angles and positions were synthesised and analysed as to their structure and properties in order to correlate the observed plasma properties to the film growth conditions. The chemical composition and the film thickness varied with changing deposition angle, where the latter, similar to the ion fluxes, was higher in +E x B than in -E x B direction.
- Authors:
-
- Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States); Montanuniversitat Leoben, Leoben (Austria)
- Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
- Publication Date:
- Research Org.:
- Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC); Austrian Science Fund (FWF)
- OSTI Identifier:
- 1393013
- Alternate Identifier(s):
- OSTI ID: 1235495
- Grant/Contract Number:
- AC02-05CH11231
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Plasma Sources Science and Technology
- Additional Journal Information:
- Journal Volume: 25; Journal Issue: 1; Journal ID: ISSN 0963-0252
- Publisher:
- IOP Publishing
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 36 MATERIALS SCIENCE; 70 PLASMA PHYSICS AND FUSION TECHNOLOGY; niobium; niobium oxide; HiPIMS; ion energy; negative ions; angular distribution
Citation Formats
Franz, Robert, Clavero, César, Kolbeck, Jonathan, and Anders, André. Influence of ionisation zone motion in high power impulse magnetron sputtering on angular ion flux and NbOx film growth. United States: N. p., 2016.
Web. doi:10.1088/0963-0252/25/1/015022.
Franz, Robert, Clavero, César, Kolbeck, Jonathan, & Anders, André. Influence of ionisation zone motion in high power impulse magnetron sputtering on angular ion flux and NbOx film growth. United States. https://doi.org/10.1088/0963-0252/25/1/015022
Franz, Robert, Clavero, César, Kolbeck, Jonathan, and Anders, André. Thu .
"Influence of ionisation zone motion in high power impulse magnetron sputtering on angular ion flux and NbOx film growth". United States. https://doi.org/10.1088/0963-0252/25/1/015022. https://www.osti.gov/servlets/purl/1393013.
@article{osti_1393013,
title = {Influence of ionisation zone motion in high power impulse magnetron sputtering on angular ion flux and NbOx film growth},
author = {Franz, Robert and Clavero, César and Kolbeck, Jonathan and Anders, André},
abstractNote = {Here, the ion energies and fluxes in the high power impulse magnetron sputtering plasma from a Nb target were analysed angularly resolved along the tangential direction of the racetrack. A reactive oxygen-containing atmosphere was used as such discharge conditions are typically employed for the synthesis of thin films. Asymmetries in the flux distribution of the recorded ions as well as their energies and charge states were noticed when varying the angle between mass-energy analyser and target surface. More positively charged ions with higher count rates in the medium energy range of their distributions were detected in +E x B than in -E x B direction, thus confirming the notion that ionisation zones (also known as spokes or plasma bunches) are associated with moving potential humps. The motion of the recorded negatively charged high-energy oxygen ions was unaffected. NbOx thin films at different angles and positions were synthesised and analysed as to their structure and properties in order to correlate the observed plasma properties to the film growth conditions. The chemical composition and the film thickness varied with changing deposition angle, where the latter, similar to the ion fluxes, was higher in +E x B than in -E x B direction.},
doi = {10.1088/0963-0252/25/1/015022},
journal = {Plasma Sources Science and Technology},
number = 1,
volume = 25,
place = {United States},
year = {Thu Jan 21 00:00:00 EST 2016},
month = {Thu Jan 21 00:00:00 EST 2016}
}
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Works referencing / citing this record:
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