Quantum interference effect in laser patterned BSCCO thick film

DC SQUID structure consisting of two microbridges and a circular hole was patterned on BSCCO thick film using laser ablation technique. Quantum interference effects on these patterned films were studied at fixed biasing current by applying changing magnetic field. The SQUID with 100 x 70 mu m microb...

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Bibliographic Details
Published in:Pramāṇa 1990-08, Vol.35 (2), p.L193-L198
Main Authors: Gupta, A K, Khare, Neeraj, Walia, D K, Tomar, V S, Ojha, V N, Pandey, H C, Bhatnagar, S K, Jain, Y K
Format: Article
Language:English
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Summary:DC SQUID structure consisting of two microbridges and a circular hole was patterned on BSCCO thick film using laser ablation technique. Quantum interference effects on these patterned films were studied at fixed biasing current by applying changing magnetic field. The SQUID with 100 x 70 mu m microbridges showed noisy and irregular V--B behaviour whereas the SQUID containing smaller microbridges showed better V--B characteristic. Temperature dependence of the I--V and V--B characteristics of the SQUID is also reported. Photomicrographs, Spectra. 22 ref.--AA
ISSN:0304-4289
0973-7111
DOI:10.1007/BF02875294