Determination of vortex motion characteristics, effective thickness and dynamic resistance in very thin YBaCuO bilayer structures
| Autor: | Myriam Pannetier, Ph. Lecoeur, T. D. Doan, O. Riou, J. F. Hamet, P. Bernstein |
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| Přispěvatelé: | Laboratoire Universitaire des Sciences Appliquées de Cherbourg (LUSAC), Université de Caen Normandie (UNICAEN), Normandie Université (NU)-Normandie Université (NU), Laboratoire de cristallographie et sciences des matériaux (CRISMAT), Normandie Université (NU)-Normandie Université (NU)-École Nationale Supérieure d'Ingénieurs de Caen (ENSICAEN), Normandie Université (NU)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche sur les Matériaux Avancés (IRMA), Normandie Université (NU)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université de Rouen Normandie (UNIROUEN), Normandie Université (NU)-Institut national des sciences appliquées Rouen Normandie (INSA Rouen Normandie), Institut National des Sciences Appliquées (INSA)-Normandie Université (NU)-Institut National des Sciences Appliquées (INSA)-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université de Rouen Normandie (UNIROUEN), Institut National des Sciences Appliquées (INSA)-Normandie Université (NU)-Institut National des Sciences Appliquées (INSA)-Centre National de la Recherche Scientifique (CNRS) |
| Rok vydání: | 1999 |
| Předmět: |
[PHYS]Physics [physics]
Superconductivity Flux pinning Materials science High-temperature superconductivity Condensed matter physics Flux Condensed Matter Physics Magnetic flux Electronic Optical and Magnetic Materials Vortex law.invention Electrical resistivity and conductivity law Condensed Matter::Superconductivity Electrical and Electronic Engineering Electrical conductor |
| Zdroj: | IEEE Transactions on Applied Superconductivity IEEE Transactions on Applied Superconductivity, 1999, 9 (2), pp.2635-2638. ⟨10.1109/77.785027⟩ |
| ISSN: | 1051-8223 |
| DOI: | 10.1109/77.785027 |
| Popis: | In order to develop superconducting flux flow devices, we have measured the electrical characteristics of microbridges made from bilayers comprised of a conductive capping layer deposited on a very thin YBa/sub 2/Cu/sub 3/O/sub 7-/spl delta// film. In the flux creep regime, these structures show a low and quasi-constant depinning-to-critical current ratio and a high maximum vortex velocity. As expected from these features, the microbridges can be driven in the flux flow regime in the vicinity of T/sub c/. In the flux flow regime, surprisingly, the dynamic resistance is not an increasing function of temperature and shows a value which is in the range of the normal-state resistance at the onset of the superconductive transition. |
| Databáze: | OpenAIRE |
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