Long-range phase coherence in YBCO ultrathin films

Marco Aprili; Jerome Lesueur; W. A. Quinton; Louis Dumoulin

doi:10.1117/12.250273

5 July 1996 Long-range phase coherence in YBCO ultrathin films

Marco Aprili, Jerome Lesueur, W. A. Quinton, Louis Dumoulin

Proceedings Volume 2697, Oxide Superconductor Physics and Nano-Engineering II; (1996) https://doi.org/10.1117/12.250273
Event: Photonics West '96, 1996, San Jose, CA, United States

Abstract

We have investigated the resistive transition of YBCO ultra- thin films (thickness from 5 to 50 nm) grown on MgO(100). The amount of disorder increases as the thickness is reduced, leading to a broad transition that can be described using a 3D weakly-coupled Josephson array. Below a critical thickness, this regime seems to dominate even the fluctuating part of the transition (paraconductive region), when the system undergoes a 3D-0D transition.

Citation Download Citation

Marco Aprili, Jerome Lesueur, W. A. Quinton, and Louis Dumoulin "Long-range phase coherence in YBCO ultrathin films", Proc. SPIE 2697, Oxide Superconductor Physics and Nano-Engineering II, (5 July 1996); https://doi.org/10.1117/12.250273

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