Y-Ba-Cu-O/Nb Josephson tunnel junctions

Conference · Tue Feb 28 23:00:00 EST 1989 · IEEE Trans. Magn.; (United States)

OSTI ID:6091475

Nakayama, A; Ito, H; Inoue, A; Takeuchi, K; Okabe, Y

The authors have fabricated Y-Ba-Cu-O/Au/AlO/sub x//Nb and Y-Ba-Cu-O/AlO/sub x//Nb Josephson tunnel junctions using electron-beam evaporation of Al and Nb films and natural oxidation. Sintered Y-Ba-Cu-O have been used as base electrode. Superconducting Josephson current and hysteresis of current-voltage characteristics, which are typical features of Josephson tunnel junctions, have been observed at 4.2 K. Rf-induced voltage steps at the voltage greater than 0.4 mV have been clearly observed and rf-induced subharmonic steps have also appeared. Moreover, the Superconducting Josephson current has been modulated by magnetic field.

• Research Organization: Dept. of Electrical Engineering, Kanagawa Univ., 3-27-1 Rokkakubashi, Kanagawa-ku, Yokohama (JP); Dept. of Electronic Engineering, Univ. of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo (JP)
• OSTI ID: 6091475
• Report Number(s): CONF-880812-
• Journal Information: IEEE Trans. Magn.; (United States), Journal Name: IEEE Trans. Magn.; (United States) Vol. 25:2; ISSN IEMGA
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360201 -- Ceramics
Cermets
& Refractories-- Preparation & Fabrication
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& Refractories-- Physical Properties
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656003 -- Condensed Matter Physics-- Interactions between Beams & Condensed Matter-- (1987-)
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ALUMINIUM
BEAM INJECTION
CHEMICAL REACTIONS
ELECTRON BEAM INJECTION
ELEMENTS
FABRICATION
FILMS
JOSEPHSON JUNCTIONS
JUNCTIONS
METALS
NIOBIUM
OXIDATION
PERFORMANCE
RF SYSTEMS
SINTERING
SUPERCONDUCTING FILMS
SUPERCONDUCTING JUNCTIONS
TRANSITION ELEMENTS