Step-edge Josephson junctions on multilayered high temperature superconducting thin film

Authors

Olga V. Shcherbakova, University of WollongongFollow
Simon KH Lam, CSIRO Materials Science and Engineering
Alexey V. Pan, University of WollongongFollow
Sergey Fedoseev, University of WollongongFollow
S. X. Dou, University of WollongongFollow
Jia Du, CSIRO Materials Science and Engineering
Cathy Foley, CSIRO Materials Science and Engineering

RIS ID

38953

Publication Details

Shcherbakova, O. V., Lam, S. KH., Pan, A. V., Fedoseev, S., Dou, S. X., Du, J. Foley, C. P. (2011). Step-edge Josephson junctions on multilayered high temperature superconducting thin film. IEEE Transactions on Applied Superconductivity, 21 (3), 156-159.

Abstract

Application of Josephson effect in sensors, electronicand metrological devices working at temperature of 77 K requiresfabrication of efficient and reproducible high temperature superconducting(HTS) Josephson junctions. In order to enhancethe performance of HTS junctions, we introduce multilayeredapproach to YBCO-based step-edge Josephson junction manufacture.Thin YBCO and multilayered YBCO/NdBCO/YBCO filmsof a similar thickness (~210 nm) were grown by a pulsed-laserdeposition technique on MgO (100) substrates with artificiallycreated step edge. Large discrepancies of Ic and Rn values werefound between these two types of junction. Results of their structuraland electrical properties are reported.

Grant Number

ARC/DP0770205

Additional Grant Number

http://purl.org/au-research/grants/ARC/DP0770205