Ilin, Konstantin and Schneider, R and Gerthsen, D and Engel, Andreas and Bartolf, Holger and Schilling, Andreas and Semenov, Alexei and Hübers, Heinz-Wilhelm and Freitag, B and Siegel, Michael (2008) Ultra-thin NbN films on Si: crystalline and superconducting properties. In: Journal of Physics: Conference Series, 97. IOP Publishing. 8th European Conference on Applied Superconductivity (EUCAS 2007), 2007-09-16 - 2007-09-20, Brussels (Belgium).
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Official URL: http://www.iop.org/EJ/article/1742-6596/97/1/012045/jpconf8_97_012045.pdf?request-id=d459f6f4-6a79-4bbc-bd18-c35ca482111a
Abstract
We present results on superconducting and crystalline properties of NbN films with a thickness smaller than 10 nm. The films were deposited using reactive magnetron sputtering on heated silicon substrates. Zero resistance critical temperatures of about 9 K have been measured for films with a thickness of about 5 nm and reaches values ≈12 K for 10 nm thick films. A value of the superconducting coherence length of about 4 nm was estimated from the measurements of the second critical magnetic field. High-resolution transmission electron microscopy accompanied with electron-spectroscopy techniques was used to analyze the structure, thickness, and film-substrate interface of fabricated films. The interrelations between fabrication conditions, superconducting and crystalline properties of NbN films on Si substrates are presented and discussed.
Item URL in elib: | https://elib.dlr.de/56542/ | |||||||||||||||||||||||||||||||||
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Document Type: | Conference or Workshop Item (UNSPECIFIED) | |||||||||||||||||||||||||||||||||
Additional Information: | doi:10.1088/1742-6596/97/1/012045 | |||||||||||||||||||||||||||||||||
Title: | Ultra-thin NbN films on Si: crystalline and superconducting properties | |||||||||||||||||||||||||||||||||
Authors: |
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Date: | March 2008 | |||||||||||||||||||||||||||||||||
Journal or Publication Title: | Journal of Physics: Conference Series | |||||||||||||||||||||||||||||||||
Refereed publication: | No | |||||||||||||||||||||||||||||||||
Open Access: | No | |||||||||||||||||||||||||||||||||
Gold Open Access: | No | |||||||||||||||||||||||||||||||||
In SCOPUS: | No | |||||||||||||||||||||||||||||||||
In ISI Web of Science: | No | |||||||||||||||||||||||||||||||||
Volume: | 97 | |||||||||||||||||||||||||||||||||
Number of Pages: | 6 | |||||||||||||||||||||||||||||||||
Publisher: | IOP Publishing | |||||||||||||||||||||||||||||||||
Status: | Published | |||||||||||||||||||||||||||||||||
Keywords: | ultra-thin films, superconductivity | |||||||||||||||||||||||||||||||||
Event Title: | 8th European Conference on Applied Superconductivity (EUCAS 2007) | |||||||||||||||||||||||||||||||||
Event Location: | Brussels (Belgium) | |||||||||||||||||||||||||||||||||
Event Type: | international Conference | |||||||||||||||||||||||||||||||||
Event Dates: | 2007-09-16 - 2007-09-20 | |||||||||||||||||||||||||||||||||
HGF - Research field: | Aeronautics, Space and Transport (old) | |||||||||||||||||||||||||||||||||
HGF - Program: | Space (old) | |||||||||||||||||||||||||||||||||
HGF - Program Themes: | W EW - Erforschung des Weltraums | |||||||||||||||||||||||||||||||||
DLR - Research area: | Space | |||||||||||||||||||||||||||||||||
DLR - Program: | W EW - Erforschung des Weltraums | |||||||||||||||||||||||||||||||||
DLR - Research theme (Project): | W - Vorhaben IR-Astronomie (old) | |||||||||||||||||||||||||||||||||
Location: | Berlin-Adlershof | |||||||||||||||||||||||||||||||||
Institutes and Institutions: | Institute of Planetary Research > Terahertz and Infrared Sensors | |||||||||||||||||||||||||||||||||
Deposited By: | Semenov, Prof.Dr. Alexey | |||||||||||||||||||||||||||||||||
Deposited On: | 05 Jan 2009 | |||||||||||||||||||||||||||||||||
Last Modified: | 17 Mar 2010 11:41 |
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