000K  utf8
1100  2010$c2010-06-01
1500  eng
2050  urn:nbn:de:gbv:27-dbt-20230725-121352-001
2051  10.1088/1742-6596/234/1/012015
3000  Grosse, V.
3010  Grib, A.
3010  Pansow, C.
3010  Rettenmayr, M.
3010  Schmidl, F.
3010  Seidel, P.
3010  Steppke, A.
3010  Undisz, A.
4000  Pulsed laser deposition of niobium thin films for in-situ device fabrication and their superconducting properties  [Grosse, V.]
4060  9 Seiten
4209  Here, we studied the crystallographic and superconducting properties of niobium thin films grown by pulsed laser deposition. Depending on laser fluence our samples showed a critical temperature of up to 8.4 K and critical current densities of 3.0 · 10 6 A/cm 2 at 4.2 K. X-ray diffraction measurements and TEM images suggest a granular structure with a preferred orientation of the (110) lattice plane parallel to the substrate surface. The superconducting properties of our films are significantly influenced by this granularity and the oxygen content in the film. We discuss the temperature dependence of the critical current density in the framework of an crossover from Ginzburg-Landau to Ambegaokar-Baratoff type behaviour. According to this the current transport is mainly dominated by Josephson-tunnelling in a granular network.
4950  https://doi.org/10.1088/1742-6596/234/1/012015$xR$3Volltext$534
4950  https://nbn-resolving.org/urn:nbn:de:gbv:27-dbt-20230725-121352-001$xR$3Volltext$534
4961  https://www.db-thueringen.de/receive/dbt_mods_00058095
5051  530