Microwave-induced steps observed in Bi-2212 intrinsic Josephson junctions

Author

Tachiki, Takashi ; Someya, Shinjiro ; Uchida, Takashi ; Yasuoka, Yoshizumi

Author_Institution

Dept. of Electr. & Electron. Eng., Nat. Defense Acad., Yokosuka, Japan

Volume

15

Issue

2

fYear

2005

fDate

6/1/2005 12:00:00 AM

Firstpage

185

Lastpage

188

Abstract

Microwave-induced steps observed in the I-V characteristics of Bi-2212 intrinsic Josephson junctions are investigated and the mechanism producing the zero-crossing steps is discussed. It is found that (1) a junction area smaller than 40 μm² shows uniform in-plane distribution of the c-axis dc current and (2) the zero-crossing steps are observed in the uniform distribution. The observation of steps in samples of different sizes under the uniform current condition indicates that the observed steps are produced by the inverse ac Josephson effect.

Keywords

Josephson effect; bismuth compounds; calcium compounds; critical currents; high-temperature superconductors; step response; strontium compounds; superconducting junction devices; Bi-2212 intrinsic Josephson junctions; Bi₂Sr₂CaCu₂O₈; I-V characteristics; high temperature superconductors; inverse ac Josephson effect; microwave induced steps; uniform in-plane distribution; zero crossing steps; Critical current; Crystals; Current distribution; Electromagnetic scattering; High temperature superconductors; Josephson effect; Josephson junctions; Plasma waves; Superconducting microwave devices; Voltage; High frequency response; Josephson junction; high-temperature superconductors;

fLanguage

English

Journal_Title

Applied Superconductivity, IEEE Transactions on

Publisher

ieee

ISSN

1051-8223

Type

jour

DOI

10.1109/TASC.2005.849745

Filename

1439607