E3S Web Conf.
Volume 229, 2021The 3rd International Conference of Computer Science and Renewable Energies (ICCSRE’2020)
|Number of page(s)||7|
|Published online||25 January 2021|
Irreversibility line and thermally activated flux flow in Micro-bridges of high-temperature superconductor
Equipe des Matériaux Supraconducteurs, Université Ibn Zohr, Faculté des Sciences, BP: 8106, Agadir, Morocco
2 Université Ibn Zohr, Faculté des Sciences Appliquées, Route Nationale N° 10 cité Azrou, Ait Melloul, Morocco
* Corresponding author: email@example.com
We have studied the electrical resistivity as a function of temperature in Micro-bridges of YBa2Cu3O7-δ deposited by laser ablation on the SrTiO3 substrate face, around superconducting transition region in different magnetic fields. The activation energy U0 was determined and discussed using the Arrhenius relation. The irreversibility line Birr and the upper critical field Bc2were obtained using 10% and 90% criteria of the normal-state resistivity value from ρ (T) curves. A phase diagram of the studied sample is constructed showing the Tg glass line and a very broad vortex-liquid phase regime.
© The Authors, published by EDP Sciences, 2021
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