Experimental Observation of s-Component of Superconducting Pairing in Thin Disordered HTSC Films Based on YBCO

Autor: Antonov, A. V., El’kina, A. I., Vasiliev, V. K., Galin, M. A., Masterov, D. V., Mikhaylov, A. N., Morozov, S. V., Pavlov, S. A., Parafin, A. E., Tetelbaum, D. I., Ustavschikov, S. S., Yunin, P. A., Savinov, D. A.
Zdroj: Physics of the Solid State; September 2020, Vol. 62 Issue: 9 p1598-1603, 6p
Abstrakt: Abstract: The original research results for thin disordered HTSC films based on YBCO are presented in this article. Several experiments have been carried out to confirm a theoretical prediction that the s-phase of superconducting pairing in disordered d-type superconductors can occur with a gradual decrease in the mean free path. The YBa2Cu3O7 – xfilms are used as samples which possess a d-type of superconducting state that was experimentally confirmed. A gradual decrease in the mean free path was achieved by both thermal annealing and ion irradiation. The experiments included measurements of temperature dependence of the London penetration depth λ and resistive studies.
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