Growth of magnesium diboride films on 2 inch diameter copper discs by hybrid physical–chemical vapor deposition
Abstract
Here, magnesium diboride (MgB2) coating is a potential candidate to replace bulk niobium (Nb) for superconducting radio frequency cavities due to the appealing superconducting properties of MgB2. MgB2 coating on copper may allow cavity operation near 20–25 K as a result of the high transition temperature (T c) of MgB2 and excellent thermal conductivity of Cu. We have grown MgB2 films on 2 inch diameter Cu discs by hybrid physical–chemical vapor deposition for radio frequency characterization. Structural and elemental analyses showed a uniform MgB2 coating on top of a Mg–Cu alloy layer with occasional intrusion of Mg–Cu alloy regions. High T c values of around 37 K and high critical current density (J c) on the order of 107 A cm–2 at zero field were observed. Radio frequency measurements at 11.4 GHz confirmed a high T c and showed a quality factor (Q 0) much higher than for Cu and close to that of Nb.
- Authors:
-
- Temple Univ., Philadelphia, PA (United States)
- Argonne National Lab. (ANL), Argonne, IL (United States)
- SLAC National Accelerator Lab., Menlo Park, CA (United States)
- Publication Date:
- Research Org.:
- SLAC National Accelerator Lab., Menlo Park, CA (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC)
- OSTI Identifier:
- 1373281
- Alternate Identifier(s):
- OSTI ID: 1360953
- Grant/Contract Number:
- AC02-06CH11357; AC02-76SF00515; SC0011616; N0014-12-1-0777
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Superconductor Science and Technology
- Additional Journal Information:
- Journal Volume: 30; Journal Issue: 4; Journal ID: ISSN 0953-2048
- Publisher:
- IOP Publishing
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; magnesium diboride; thin films; superconducting radio frequency cavity
Citation Formats
Withanage, Wenura K., Xi, X. X., Nassiri, Alireza, Lee, Namhoon, Wolak, Matthaus A., Tan, Teng, Welander, Paul B., Franzi, Matthew, Tantawi, Sami, and Kustom, Robert L. Growth of magnesium diboride films on 2 inch diameter copper discs by hybrid physical–chemical vapor deposition. United States: N. p., 2017.
Web. doi:10.1088/1361-6668/aa5999.
Withanage, Wenura K., Xi, X. X., Nassiri, Alireza, Lee, Namhoon, Wolak, Matthaus A., Tan, Teng, Welander, Paul B., Franzi, Matthew, Tantawi, Sami, & Kustom, Robert L. Growth of magnesium diboride films on 2 inch diameter copper discs by hybrid physical–chemical vapor deposition. United States. https://doi.org/10.1088/1361-6668/aa5999
Withanage, Wenura K., Xi, X. X., Nassiri, Alireza, Lee, Namhoon, Wolak, Matthaus A., Tan, Teng, Welander, Paul B., Franzi, Matthew, Tantawi, Sami, and Kustom, Robert L. Thu .
"Growth of magnesium diboride films on 2 inch diameter copper discs by hybrid physical–chemical vapor deposition". United States. https://doi.org/10.1088/1361-6668/aa5999. https://www.osti.gov/servlets/purl/1373281.
@article{osti_1373281,
title = {Growth of magnesium diboride films on 2 inch diameter copper discs by hybrid physical–chemical vapor deposition},
author = {Withanage, Wenura K. and Xi, X. X. and Nassiri, Alireza and Lee, Namhoon and Wolak, Matthaus A. and Tan, Teng and Welander, Paul B. and Franzi, Matthew and Tantawi, Sami and Kustom, Robert L.},
abstractNote = {Here, magnesium diboride (MgB2) coating is a potential candidate to replace bulk niobium (Nb) for superconducting radio frequency cavities due to the appealing superconducting properties of MgB2. MgB2 coating on copper may allow cavity operation near 20–25 K as a result of the high transition temperature (T c) of MgB2 and excellent thermal conductivity of Cu. We have grown MgB2 films on 2 inch diameter Cu discs by hybrid physical–chemical vapor deposition for radio frequency characterization. Structural and elemental analyses showed a uniform MgB2 coating on top of a Mg–Cu alloy layer with occasional intrusion of Mg–Cu alloy regions. High T c values of around 37 K and high critical current density (J c) on the order of 107 A cm–2 at zero field were observed. Radio frequency measurements at 11.4 GHz confirmed a high T c and showed a quality factor (Q 0) much higher than for Cu and close to that of Nb.},
doi = {10.1088/1361-6668/aa5999},
journal = {Superconductor Science and Technology},
number = 4,
volume = 30,
place = {United States},
year = {Thu Feb 16 00:00:00 EST 2017},
month = {Thu Feb 16 00:00:00 EST 2017}
}
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Works referencing / citing this record:
Growth of magnesium diboride thin films on boron buffered Si and silicon-on-insulator substrates by hybrid physical chemical vapor deposition
journal, June 2018
- Withanage, Wenura K.; Penmatsa, Sashank V.; Acharya, Narendra
- Superconductor Science and Technology, Vol. 31, Issue 7