Competition between intrinsic and extrinsic effects in the quenching of the superconducting state in Fe(Se,Te) thin films

Article

关键词: FLUX-FLOW INSTABILITY;    IRON-BASED SUPERCONDUCTORS;    ELECTRONIC INSTABILITY;    VORTEX MOTION;   

DOI  :  10.1103/PhysRevB.93.054503

来源: SCIE

【 摘 要 】

We report the first experimental observation of the quenching of the superconducting state in current-voltage characteristics of an iron-based superconductor, namely, in Fe(Se, Te) thin films. Based on available theoretical models, our analysis suggests the presence of an intrinsic flux-flowelectronic 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.

【 授权许可】

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