Issues »  Volume 42, Issue 9

Current Noise in Metallic Contacts Based on Two-Gap Superconductors

E. S. Zhytlukhina$^{1,2}$

$^{1}$Donetsk Institute for Physics and Engineering Named after O. O. Galkin, NAS of Ukraine, 46 Nauky Ave., UA-03028 Kyiv, Ukraine
$^{2}$Vasyl’ Stus Donetsk National University, 21 600-richchya Str., UA-21021 Vinnytsia, Ukraine

Received: 15.02.2020; final version - 28.04.2020. Download: PDF

Current fluctuations in layered hybrid structures formed by a metal injector, a nanoscale insulator, a normal metal interlayer, and the superconductor are studied theoretically. As shown, the simultaneous measurements of shot noise and differential conductance in such samples can serve as a source of reliable information on the presence of two energy bands with different superconducting gaps in the superconductor.

Key words: two-band superconductors, current fluctuations, shot noise, differential conductance.

URL: http://mfint.imp.kiev.ua/en/abstract/v42/i09/1197.html

DOI: https://doi.org/10.15407/mfint.42.09.1197

PACS: 05.60.Gg, 73.21.Ac, 73.63.Rt, 74.40.-n

Citation: E. S. Zhytlukhina, Current Noise in Metallic Contacts Based on Two-Gap Superconductors, Metallofiz. Noveishie Tekhnol., 42, No. 9: 1197—1206 (2020) (in Ukrainian)

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