Competition between intrinsic and extrinsic effects in the quenching of the superconducting state in FeSeTe thin films

Abstract

We report the first experimental observation of the quenching of the superconducting state in current-voltage characteristics of an iron-based superconductor, namely, in FeSeTe thin films. Based on available theoretical models, our analysis suggests the presence of an intrinsic flux-flow electronic instability along with non-negligible extrinsic thermal effects. The coexistence and competition of these two mechanisms classify the observed instability as halfway between those of low-temperature and of high-temperature superconductors, where thermal effects are respectively largely negligible or predominant.

7 pages, 5 figures, fixed typos

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Cited by in corpus (5)

• Pinning effects on self-heating and flux-flow instability in superconducting films near $T_c$
• Quenching current by flux-flow instability in iron-chalcogenides thin films
• Fast Dynamics of Vortices in Superconductors
• Pinning effects on hot-electron vortex flow instability in superconducting films
• Stability mechanisms of high current transport in iron-chalcogenides superconducting films