Ba/sub 1-X/K/sub X/BiO/sub 3/ grain boundary junctions prepared on SrTiO/sub 3/ bicrystal substrates

Author

Imaeda, S. ; Inoue, M. ; Fujimaki, A. ; Hayakawa, H.

Author_Institution

Dept. of Electron., Nagoya Univ., Japan

Volume

5

Issue

2

fYear

1995

fDate

6/1/1995 12:00:00 AM

Firstpage

2208

Lastpage

2211

Abstract

We succeeded in the fabrication of Ba/sub 1-X/K/sub X/BiO/sub 3/ artificial grain boundary junctions prepared on SrTiO/sub 3/ bicrystal substrates. These junctions showed the Josephson current and the energy gap structure in the I-V characteristics. In a magnetic field, the critical current was modulated and the I/sub c/-B curve showed a clear Fraunhofer pattern. Fiske steps were also observed in the I-V characteristics. In the radiation of 10.5 GHz microwaves, Shapiro steps were observed.<>

Keywords

Josephson effect; barium compounds; bicrystals; critical currents; grain boundaries; high-temperature superconductors; potassium compounds; superconducting energy gap; 10.5 GHz; Ba/sub 1-X/K/sub X/BiO/sub 3/ grain boundary junctions; BaKBiO/sub 3/; Fiske steps; Fraunhofer pattern; I-V characteristics; Josephson current; Shapiro steps; SrTiO/sub 3/; SrTiO/sub 3/ bicrystal substrates; critical current; energy gap; fabrication; magnetic field; microwave irradiation; Argon; Grain boundaries; Ion beams; Josephson effect; Magnetic fields; Powders; RNA; Sputtering; Substrates; Temperature;

fLanguage

English

Journal_Title

Applied Superconductivity, IEEE Transactions on

Publisher

ieee

ISSN

1051-8223

Type

jour

DOI

10.1109/77.403023

Filename

403023