V. V. Gur'ev, V. E. Krylov, I. V. Kulikov, I. M. Abdyukhanov, M. V. Alekseev, Yu. N. Belotelova, P. V. Konovalov, P. A. Lukyanov, M. V. Maltzeva, S. N. Nikolaev, S. V. Shavkin, “Manipulating compositional stoichiometry in high-temperature superconductors to enhance critical currents under high magnetic fields”, Fizika Tverdogo Tela, 2024, Volume 66, Issue 12,Pages <nobr>2082

International Conference Physics.SPb/2024
Surface physics, thin films

Manipulating compositional stoichiometry in high-temperature superconductors to enhance critical currents under high magnetic fields

V. V. Gur'ev^a, V. E. Krylov^a, I. V. Kulikov^a, I. M. Abdyukhanov^b, M. V. Alekseev^b, Yu. N. Belotelova^b, P. V. Konovalov^b, P. A. Lukyanov^b, M. V. Maltzeva^b, S. N. Nikolaev^a, S. V. Shavkin^a

^a National Research Centre "Kurchatov Institute", Moscow, Russia
^b Bochvar Russian Scientific Research Institute of Inorganic Materials, Moscow, Russia

Abstract: The influence of the deviation in the target chemical composition from the stoichiometric ratios of yttrium-barium-copper oxide (YBCO) Y:Ba:Cu = 1:2:3 on the properties of coated conductors fabricated through pulsed laser deposition was investigated. An optimal target composition was empirically established, facilitating both a reduction in anisotropy and an enhancement of the critical current at liquid helium temperatures and under intense magnetic fields.

Keywords: YBCO, coated conductor, pinning centers, anisotropy, target.

Received: 30.04.2024
Revised: 28.10.2024
Accepted: 30.10.2024

DOI: 10.61011/FTT.2024.12.59565.6507PA