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Influence of thickness, width and temperature on critical current density of Nb thin film structures
Ilin, Konstantin and Rall, Dagmar and Siegel, Michael and Angel, Andreas and Schilling, Andreas and Semenov, Alexej and Hübers, H.-W. (2010) Influence of thickness, width and temperature on critical current density of Nb thin film structures. Physica C: Superconductivity and its Applications, 470. DOI: 10.1016/j.physc.2010.02.042. ISSN 0921-4534.
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Abstract
The density of critical currents jC in Nb thin films with thickness smaller than 15 nm and width between 100 nm and 10 lm has been measured in a wide temperature range. We have found that the temperature dependencies of jC in sub-micrometer wide bridges at 0.7TC < T < TC are well described by the Ginzburg– Landau de-pairing critical current. In wider bridges already at T < 0.9TC the jC value is significantly reduced due to the penetration and de-pinning of magnetic vortices.
| Document Type: | Article | ||||||||||||||||
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| Title: | Influence of thickness, width and temperature on critical current density of Nb thin film structures | ||||||||||||||||
| Authors: |
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| Date: | 2010 | ||||||||||||||||
| Journal or Publication Title: | Physica C: Superconductivity and its Applications | ||||||||||||||||
| Refereed publication: | Yes | ||||||||||||||||
| In SCOPUS: | Yes | ||||||||||||||||
| In ISI Web of Science: | Yes | ||||||||||||||||
| Volume: | 470 | ||||||||||||||||
| DOI: | 10.1016/j.physc.2010.02.042 | ||||||||||||||||
| ISSN: | 0921-4534 | ||||||||||||||||
| Status: | Published | ||||||||||||||||
| Keywords: | Thin Nb films, De-pairing critical current density, De-pinning of magnetic vortices | ||||||||||||||||
| HGF - Research field: | Aeronautics, Space and Transport | ||||||||||||||||
| HGF - Program: | Space | ||||||||||||||||
| HGF - Program Themes: | W - no assignement | ||||||||||||||||
| DLR - Research area: | Space | ||||||||||||||||
| DLR - Program: | W - no assignement | ||||||||||||||||
| DLR - Research theme (Project): | W -- no assignement (old) | ||||||||||||||||
| Location: | Berlin-Adlershof | ||||||||||||||||
| Institutes and Institutions: | Institute of Planetary Research > Terahertz and Infrared Sensors | ||||||||||||||||
| Deposited By: | Prof.Dr. Alexey Semenov | ||||||||||||||||
| Deposited On: | 10 Jan 2011 09:39 | ||||||||||||||||
| Last Modified: | 26 Mar 2013 13:25 |
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