Effects induced by electron beam irradiation on Y1Ba2Cu3O7-x Josephson structures: a new approach to control the junction barrier properties

Francesco Tafuri; B. Nadgorny; Sergey Shokhar; M. Gurvitch; Filomena Lombardi; F. Carillo; Alessandro Di Chiara

doi:10.1117/12.335895

22 December 1998 Effects induced by electron beam irradiation on Y₁Ba₂Cu₃_O7-xJosephson structures: a new approach to control the junction barrier properties

Francesco Tafuri, B. Nadgorny, Sergey Shokhar, M. Gurvitch, Filomena Lombardi, F. Carillo, Alessandro Di Chiara

Author Affiliations +

Proceedings Volume 3481, Superconducting and Related Oxides: Physics and Nanoengineering III; (1998) https://doi.org/10.1117/12.335895
Event: SPIE's International Symposium on Optical Science, Engineering, and Instrumentation, 1998, San Diego, CA, United States

Abstract

The properties of YBa₂Cu₃O_7-x grain boundary Josephson junctions have been reproducibly modified by a focused electron beam irradiation. The original junctions were fabricated by using the property of YBa₂Cu₃O_7-x film to grow (103)-oriented on the bare (110) SrTiO₃ substrate and (001)-oriented on the part of the substrate with the MgO seed layer. The junction parameters can be adjusted controllably by applying an appropriate irradiation dose. Electron irradiation reduced the critical current of the junctions I_C and increased the normal state specific resistivity. The shift of the voltage position of the Fiske steps was also observed.Isothermal annealing partly restores the original junction properties. A correlation between the transport properties and the microstructure was obtained by determining the ratio of a barrier thickness to the dielectric constant of the junctions with different barriers. These results give evidence of the role of the oxygen content and the dielectric constant of the interface region in transport phenomena. The experiment also demonstrates frequency tunability in a resonant soliton oscillator.

Citation Download Citation

Francesco Tafuri, B. Nadgorny, Sergey Shokhar, M. Gurvitch, Filomena Lombardi, F. Carillo, and Alessandro Di Chiara "Effects induced by electron beam irradiation on Y₁Ba₂Cu₃_O7-xJosephson structures: a new approach to control the junction barrier properties", Proc. SPIE 3481, Superconducting and Related Oxides: Physics and Nanoengineering III, (22 December 1998); https://doi.org/10.1117/12.335895

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

Members: $17.00

Non-members: $21.00 ADD TO CART

PROCEEDINGS
7 PAGES

DOWNLOAD PAPER SAVE TO MY LIBRARY

GET CITATION

RIGHTS & PERMISSIONS

Get copyright permission Get copyright permission on Copyright Marketplace

KEYWORDS

Annealing

Electron beams

Radon

Resistance

Dielectrics

Oxygen

Superconductors

Show All Keywords

Keywords/Phrases

Search In:

Publication Years