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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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.
|Title:||Influence of thickness, width and temperature on critical current density of Nb thin film structures|
|Journal or Publication Title:||Physica C: Superconductivity and its Applications|
|In ISI Web of Science:||Yes|
|Keywords:||Thin Nb films, De-pairing critical current density, De-pinning of magnetic vortices|
|HGF - Research field:||Aeronautics, Space and Transport (old)|
|HGF - Program:||Space (old)|
|HGF - Program Themes:||W - no assignement|
|DLR - Research area:||Space|
|DLR - Program:||W - no assignement|
|DLR - Research theme (Project):||W -- no assignement (old)|
|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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