XXIX International Symposium "Nanophysics and Nanoelectronics", Nizhny Novgorod, March 10-14, 2025
Surface physics, thin films

Electron transport in strontium iridate thin films and superconducting heterostructures

Yu. V. Kislinskii^a, I. E. Moscal^a, V. A. Baidikova^ab, K. I. Constantinian^a, N. V. Dubitskiy^ac, A. M. Petrzhik^a, G. D. Ul'ev^ac, A. V. Shadrin^ad, V. A. Shmakov^a, G. A. Ovsyannikov<sup>a

a</sup> Kotelnikov Institute of Radioengineering and Electronics of the Russian Academy of Sciences, Moscow
^b MIREA — Russian Technological University, Moscow
^c National Research University Higher School of Economics, Moscow
^d Moscow Institute of Physics and Technology (National Research University), Dolgoprudny, Moscow Region

Abstract: Thin films of strontium iridate that have a feature of strong spin-orbit coupling were made. They were deposited by three technological procedures which are direct current sputtering, pulsed voltage source sputtering, laser ablation. By electrical resistivity versus temperature dependencies the mechanisms of charge carrier transport were determined for the films. A superconducting current transport models for junctions which based on cuprate YBa$_2$Cu$_3$O$_{7-x}$ and niobium which are separated by strontium iridate barriers were proposed.

Keywords: strontium iridate, hopping conductivity, spin-orbit coupling, electron-electron interaction, Josephson effect.

Received: 06.03.2025
Revised: 06.03.2025
Accepted: 05.05.2025

DOI: 10.61011/FTT.2025.07.61198.24HH-25

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