Title :
High Tc RF-biased SQUID
Author :
Harmston, C.H. ; Symko, O.G. ; Yeh, W.J. ; Zheng, D.J. ; Kulkarni, S.K.
Author_Institution :
Dept. of Phys., Utah Univ., Salt Lake City, UT, USA
fDate :
3/1/1989 12:00:00 AM
Abstract :
Results are presented on the behaviour of a simple RF-biased SQUID (superconducting quantum interference device) made out of YBa2Cu3O7. It consists of a fractured ceramic pellet stuck together at room temperature. This simple device is shielded by a high-Tc tube and shows the characteristic flux quantization behaviour up to 77 K. At 4.2 K its magnetic flux resolution is less than 2×10-4 φ0/√Hz, and it shows sensitivity degradation as the temperature is raised
Keywords :
SQUIDs; barium compounds; high-temperature superconductors; yttrium compounds; RF-biased SQUID; YBa2Cu3O7; flux quantization behaviour; fractured ceramic pellet; high temperature superconductor; high-Tc tube; magnetic flux resolution; sensitivity degradation; Acoustical engineering; Detectors; Equations; Nitrogen; Noise figure; Noise reduction; SQUIDs; Superconducting device noise; Temperature; Thermal degradation;
Journal_Title :
Magnetics, IEEE Transactions on
