Magnetic relaxation in high-temperature superconductors |
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| Affiliation: | 1. Department of Physics, University of Ottawa, Ottawa, Ontario, Canada K1N 6N5;2. Solid State Physics Department, Faculty of Physics and Applied Computer Science, AGH University of Science and Technology, 30-059 Kraków, Poland;3. Van der Waals-Zeeman Institute, University of Amsterdam, NL-1018 XE, The Netherlands;1. Department of Physics, Faculty of Science, University of Zagreb, POB 331, HR-10001 Zagreb, Croatia;2. Theoretische Physik III, Ruhr-Universität Bochum, D-44801 Bochum, Germany;1. High Magnetic Field Laboratory, Chinese Academy of Sciences, Hefei 230031, China;2. University of Science and Technology of China, Hefei 230026, China;3. Wuhan National High Magnetic Field Center, Huazhong University of Science and Technology, Wuhan 430074, China;4. School of Electronic and Information Engineering, Hefei Normal University, Hefei 230061, China;1. Laboratoire de Physique des Matériaux, Faculté des Sciences de Sfax, Sfax University, B.P. 1171, 3000 Sfax, Tunisia;2. ITODYS, Université Paris Diderot, Sorbonne Paris Cité, CNRS UMR 7086, 15 Rue Jean Antoine de Baïf, 75205 Paris, France;3. Centre de Recherche en Informatique, Multimédia et Traitement Numérique des Données, Technopôle de Sfax, Tunisia;1. Instituto de Física Armando Dias Tavares, Universidade do Estado do Rio de Janeiro (UERJ), 20550-013, Rio de Janeiro - RJ, Brazil;2. Instituto de Física, Universidade Federal do Rio de Janeiro (UFRJ), 20550-013, Rio de Janeiro - RJ, Brazil |
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| Abstract: | The magnetic relaxation rate was calculated for the vortex-glass or collective-creep model and the thermal activated model considering backward hopping. By comparing the theoretical results with experimental data it was found that the former models were in good agreement with the experiment at relatively low temperature regions, while the latter were at higher temperatures near Tc. These results are discussed in detail. |
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