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arXiv · 1604.02921

Doubling of the critical temperature of FeSe observed in point contacts

Yu. G. Naidyuk·G. Fuchs·D. A. Chareev·A. N. Vasiliev
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Abstract

Rise in superconducting critical temperature Tc more than two times (exceeding 20 K) is discov- ered in point-contacts created between iron-chalcogenide FeSe single crystal and Cu. The possible reasons of such Tc increase in point-contacts are discussed. The most probable cause for this may be the interfacial carriers doping and/or interfacial enhanced electron-phonon interaction.

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Yu. G. Naidyuk, G. Fuchs, D. A. Chareev, A. N. Vasiliev. 2016-05-06. Doubling of the critical temperature of FeSe observed in point contacts. https://doi.org/10.1103/physrevb.93.144515

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