Electronic Resource
Woodbury, NY
:
American Institute of Physics (AIP)
Applied Physics Letters
56 (1990), S. 1579-1581
ISSN:
1077-3118
Source:
AIP Digital Archive
Topics:
Physics
Notes:
rf superconducting quantum interference devices (SQUIDs) of bulk Bi1.4Pb0.6Sr2Ca2Cu3Ox samples have been fabricated using an adjustable break junction and operated from 4.2 to 101 K. An adjustable break junction is used as weak link whose critical current can be varied to obtain the optimum signal at each given temperature. These SQUIDs can be reproducibly operated after many thermal cycles and moisture-drying processes. Flux noise spectra as function of both of frequency and temperature have been measured. The typical values of flux noise and energy resolution at a frequency of 200 Hz and 77 K are ∼2×10−4 φ0/(Hz)1/2 and ∼8.6×10−28 J/Hz, respectively, which are comparable to that of bulk YBa2Cu3O7−y rf SQUIDs.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1063/1.103134
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