DETECTION OF SMALL MAGNETIC-FIELDS USING THICK BSCCO FILM RF SQUID OPERATING AT 77-K

Authors
KHARE N GUPTA AK CHAUDHRY S
Citation
N. Khare et al., DETECTION OF SMALL MAGNETIC-FIELDS USING THICK BSCCO FILM RF SQUID OPERATING AT 77-K, Cryogenics, 33(9), 1993, pp. 926-927
Citations number
8
Categorie Soggetti
Physics, Applied
Journal title
Cryogenics → ACNP
ISSN journal
00112275
Volume
33
Issue
9
Year of publication
1993
Pages
926 - 927
Database
ISI
SICI code
0011-2275(1993)33:9<926:DOSMUT>2.0.ZU;2-D
Abstract
A high T(c) RF SQUID fabricated from thick BSCCO film using naturally present grain boundary weak links has been used for measuring small ma gnetic fields originating from an analogue quartz wrist watch and magn etic rock samples. For these measurements, the samples were kept at am bient temperature at a distance of almost-equal-to 4 cm from the SQUID , which was operated in the 'locked mode' at 77 K. The flux noise dens ity of the SQUID in the white noise region was 5 x 10(-4) PHI0 Hz-1/2 at 77 K.