Behaviour of thick film BiSrCaCuO rf SQUID at 77 K

Rf SQUID effect has been observed in BiSrCaCuO thick film at 77 K. The films were prepared using screen printing technique on MgO (100) substrate with the starting composition of 1112. The superconducting film has Tc( R=0) ∼ 100 K. A hole shunted with a microbridge is carved manually for observing r...

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Bibliographic Details
Published in:Solid state communications 1990, Vol.76 (7), p.929-931
Main Authors: Khare, Neeraj, Gupta, A.K., Chaudhry, Sangeeta, Tomar, V.S.
Format: Article
Language:English
Subjects:
Condensed matter: electronic structure, electrical, magnetic, and optical properties
Exact sciences and technology
Physics
Properties of type I and type II superconductors
Superconductivity
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Summary:Rf SQUID effect has been observed in BiSrCaCuO thick film at 77 K. The films were prepared using screen printing technique on MgO (100) substrate with the starting composition of 1112. The superconducting film has Tc( R=0) ∼ 100 K. A hole shunted with a microbridge is carved manually for observing rf SQUID effect. Flux noise spectrum of the SQUID has been studied at 77 K. The flux noise in this device is relatively less than that observed in thick film YBaCuO rf SQUID.
ISSN:0038-1098
1879-2766
DOI:10.1016/0038-1098(90)90886-G