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International Conference Computational Vision and Bio Inspired Computing

Hybrid Quantum Classical Nano Devices Bridging the Frontier of Information Processing

C.Selvarathi, S K Vedhashree, M. Geetha, A. Joyce, B. Sathishkumar, P. Pandiaraja

Published Aug 1, 2026• 0 citations
Publisher
DOI
10.1109/iccvbic71195.2026.11688261

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Nano-Superconducting Quantum Interference Devices (nano-SQUIDs) are usually fabricated from a single layer of either Nb or Al. We describe here a simple method for fabricating suspended nano-bridges in Nb/Al thin-film bilayers. We use these suspended bridges, which act as Josephson weak links, to fabricate nano-SQUIDs which show critical current oscillations at temperatures up to 1.5 K and magnetic flux densities up to over 20 mT. These nano-SQUIDs exhibit flux modulation depths intermediate between all-Al and all-Nb devices, with some of the desirable characteristics of both. The suspended geometry is attractive for magnetic single nanoparticle measurements.