Study of current peaks in DC SQUID with integrated coupling coil

Author

Kohjiro, S. ; Simizu, N. ; Kiryu, S. ; Chiba, N. ; Koyanagi, M.

Author_Institution

Electrotech. Lab., Ibaraki, Japan

Volume

3

Issue

1

fYear

1993

fDate

3/1/1993 12:00:00 AM

Firstpage

1853

Lastpage

1857

Abstract

The mechanism and the damping condition are investigated for the resonant peak in the current-voltage characteristics of a DC superconducting quantum interference device (SQUID) coupled to an integrated multiturn input coil. It is experimentally confirmed that the resonant voltage, V/sub r/, depends on parameters of the coupling structure. The V/sub r/ and peak height are calculated based on an RF admittance and a balance equation for incident and dissipated powers in them SQUID. The analytical results agree qualitatively with experimental ones. A simple analytical formula for the damping condition is derived.<>

Keywords

SQUIDs; damping; electron device testing; magnetometers; superconducting magnets; DC SQUID; RF admittance; balance equation; current peaks; current-voltage characteristics; damping condition; integrated coupling coil; magnetometer; resonant peak; resonant voltage; Admittance; Current-voltage characteristics; Damping; Interference; Radio frequency; Resonance; SQUIDs; Superconducting coils; Superconducting devices; Voltage;

fLanguage

English

Journal_Title

Applied Superconductivity, IEEE Transactions on

Publisher

ieee

ISSN

1051-8223

Type

jour

DOI

10.1109/77.233320

Filename

233320