Fabrication and properties of all a-axis oriented YBaCuO-PrBaCuO-YBaCuO Josephson junctions

Florence Pourtier; Jean-Claude Villegier

doi:10.1117/12.180988

2 July 1994 Fabrication and properties of all a-axis oriented YBaCuO-PrBaCuO-YBaCuO Josephson junctions

Florence Pourtier, Jean-Claude Villegier

Proceedings Volume 2160, Superconductive Devices and Circuits; (1994) https://doi.org/10.1117/12.180988
Event: OE/LASE '94, 1994, Los Angeles, CA, United States

Abstract

YBaCuO-PrBaCuO-YBaCuO a-axis oriented trilayer structures was realized by in-situ ICM (Inverted Cylindrical Magnetron) sputtering method, including a template step. Cross type junctions of micrometer size were patterned with a trilayer SNOP process. Their Josephson and tunneling characteristics have been investigated for various thicknesses of the PrBaCuO barrier (10- 100 nm). The critical current was found proportional to exp(-(alpha) T^1/2) (SNS type in the dirty limit) where (alpha) was a constant. Strong and reproducible non-linearities were observed on the I-V curves especially above 10 mV and analyzed in terms of tunneling process. Tunnel barrier and interface models are proposed to explain the low critical current-normal resistance products (0.4 mV at 4.2(Kappa) ) as well as the I-V curves.

Citation Download Citation

Florence Pourtier and Jean-Claude Villegier "Fabrication and properties of all a-axis oriented YBaCuO-PrBaCuO-YBaCuO Josephson junctions", Proc. SPIE 2160, Superconductive Devices and Circuits, (2 July 1994); https://doi.org/10.1117/12.180988

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available