Godfrey, T;
Long, G;
Gallop, J;
Cox, D;
Polychroniou, E;
Chen, J;
Romans, E;
(2020)
Microwave Inductive Readout of EBL nanobridge SQUIDs.
IEEE Transactions on Applied Superconductivity
10.1109/tasc.2020.2998374.
(In press).
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Abstract
Niobium-based nanobridge SQUIDs have shown very low noise performance and high frequency operation. We describe how we are bringing together these two aspects of nanobridge SQUIDs with the aim of realising single spin-flip detection using micro-wave inductive readout techniques, where the nanobridge SQUID is integrated into a superconducting coplanar waveguide (CPW) resonator. Using electron beam lithography (EBL) is ideal for fabricating nanobridge junctions and has the advantage of being easily scalable compared to using a focused ion beam. In this paper, we demonstrate that EBL is suitable for fabricating nanobridge junction SQUIDs, and they exhibit very comparable performance to previous FIB milled SQUIDs. Our integrated de-vices show potential to be used for flux tunable sensors.
| Type: | Article |
|---|---|
| Title: | Microwave Inductive Readout of EBL nanobridge SQUIDs |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1109/tasc.2020.2998374 |
| Publisher version: | https://doi.org/10.1109/tasc.2020.2998374 |
| Language: | English |
| Additional information: | This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions. |
| Keywords: | SQUIDs, focused ion beam, EBL, nanoscale, superconducting microwave devices, NanoSQUID |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Electronic and Electrical Eng |
| URI: | https://discovery.ucl.ac.uk/id/eprint/10101817 |
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