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Investigation of properties of nanobridge Josephson junctions and superconducting tracks fabricated by FIB

Li, Bo, Godfrey, T, Cox, David, Li, T, Gallop, J, Galer, Sebastian, Nisbet, Andrew, Romans, E and Hao, L (2018) Investigation of properties of nanobridge Josephson junctions and superconducting tracks fabricated by FIB In: Advances in Quantum Transport in Low Dimensional Systems, 04–05 Sep 2017, London, UK.

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An important requirement across a range of sensitive detectors is to determine accurately the energy deposited by the impact of a particle in a small volume. The particle may be anything from a visible photon through to an X-ray or massive charged particle. We have been developing nanobridge Josephson junctions based SQUIDs and nanoSQUID devices covering the entire range of particle detection energies from 1eV to MeV. In this paper we discuss some developments in nanobridge Josephson junctions fabrication using focussed ion beam (FIB) and how these developments impact future applications. We focus on tuning of the transition temperature of a superconducting thin-film absorber, with the aim to match the absorber Tc to the working temperature range of the SQUID and also on using a new Xe FIB to improve Josephson junction and superconducting film quality.

Item Type: Conference or Workshop Item (Conference Paper)
Divisions : Faculty of Engineering and Physical Sciences > Physics
Authors :
Godfrey, T
Li, T
Gallop, J
Romans, E
Hao, L
Date : 2 March 2018
Funders : UK NMS Programme, Engineering and Physical Sciences Research Council (EPSRC), NHS i4i
DOI : 10.1088/1742-6596/964/1/012004
Copyright Disclaimer : Content from this work may be used under the terms of the Creative Commons Attribution 3.0 licence. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI.
Related URLs :
Depositing User : Melanie Hughes
Date Deposited : 08 Mar 2018 12:16
Last Modified : 01 Aug 2019 14:51

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