Title :
Noise measurements in a 2-hole radio frequency SQUID at liquid nitrogen temperature
Author :
Harrop, S.P. ; Colclough, M.S. ; Gough, C.E. ; Keene, M.N. ; Muirhead, C.M.
Author_Institution :
Dept. of Phys., Birmingham Univ., UK
fDate :
3/1/1989 12:00:00 AM
Abstract :
The authors report measurements of the noise in a two-hole RF SQUID (superconducting quantum interference device) fabricated from bulk YBCO by an erosion technique in the frequency range 30 mHz to 1 kHz. Above 100 Hz the noise is essentially white with an RMS (root mean square) value of 5×10-4 φ0/√Hz and is dominated by noise from the electronics. Below 10-Hz the noise power rises as 1/f0/9
Keywords :
SQUIDs; barium compounds; electron device noise; high-temperature superconductors; random noise; yttrium compounds; 1/f noise; 30 mHz to 1 kHz; 77 K; YBaCuO; erosion technique; high temperature superconductor; noise power; two-hole RF SQUID; white noise; Frequency measurement; Noise measurement; Radio frequency; Radiofrequency interference; Root mean square; SQUIDs; Superconducting device noise; Superconducting devices; White noise; Yttrium barium copper oxide;
Journal_Title :
Magnetics, IEEE Transactions on
