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Can topological transitions be exploited to engineer intrinsically quench-resistant wires?

Research output: Contribution to journalArticle

Original languageEnglish
Article number0500305
JournalIEEE Transactions on Applied Superconductivity
Volume28
Issue number4
Early online date8 Jan 2018
DOIs
DateAccepted/In press - 22 Dec 2017
DateE-pub ahead of print (current) - 8 Jan 2018

Abstract

We investigate whether by synthesising superconductors that are tuned to a topological, node-reconstruction transition point we could create superconducting wires that are intrinsically resilient to quenches. Recent work shows that the exponent characterising the temperature dependence of the specific heat of a nodal superconductor is lowered over a region of the phase diagram near topological transitions where nodal lines form or reconnect. Our idea is that the resulting enhancement of the low-temperature specific heat could have potential application in the prevention of superconductor quenches. We perform numerical simulations of a simplified superconductor quench model. Results show that decreasing the specific heat exponent can prevent a quench from occurring and improve quench resilience, though in our simple model the effects are small. Further work will be necessary to establish the practical feasibility of this approach.

    Research areas

  • Heat transfer, Heating systems, Helium, Mathematical model, Superconducting filaments and wires, Wires

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    Rights statement: This is the final published version of the article (version of record). It first appeared online via IEEE at https://doi.org/10.1109/TASC.2018.2791515 . Please refer to any applicable terms of use of the publisher.

    Final published version, 391 KB, PDF document

    Licence: CC BY

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