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

Research output: Contribution to journalArticle

Author(s)

Philip Whittlesea, Jorge Quintanilla, James F. Annett, Adrian D. Hillier, Chris Hooley

School/Research organisations

Abstract

In this paper, we investigate whether by synthesizing 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 characterizing 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 a 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.

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Details

Original languageEnglish
Article number8252800
Number of pages5
JournalIEEE Transactions on Applied Superconductivity
Volume28
Issue number4
Early online date9 Jan 2018
DOIs
Publication statusPublished - 1 Jun 2018

    Research areas

  • Energy dissipation, Superconducting filaments and wires, Superconducting magnetic energy storage, Superconducting magnets, Waste heat

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