Low Temperature Physics: 46, 379 (2020); https://doi.org/10.1063/10.0000871
Fizika Nizkikh Temperatur: Volume 46, Number 4 (April 2020), p. 457-461    ( to contents , go back )

Ultrathin superconducting NbRe microstrips with hysteretic voltage-current characteristic

C. Cirillo1,2, M. Caputo2, L. Parlato3,4, M. Ejrnaes5, D. Salvoni3,4, R. Cristiano5, G.P. Pepe3,4, and C. Attanasio2,1

1CNR-SPIN, c/o Università di Salerno, Via Giovanni Paolo II, 132, I-84084 Fisciano (Sa), Italy

2Dipartimento di Fisica “E.R. Caianiello”, Università degli Studi di Salerno, I-84084 Fisciano (Sa), Italy

3Dipartimento di Fisica, Università degli Studi di Napoli Federico II, I-80125 Napoli, Italy

4CNR-SPIN, c/o Complesso di Monte S. Angelo, via Cinthia, I-80126 Napoli, Italy

5CNR-SPIN, Via Campi Flegrei, 34, I-80078 Pozzuoli NA, Italy
E-mail: cattanasio@unisa.it
pos Анотація:

Received November 25, 2019, published online February 28, 2020

Abstract

Ultrathin microstrips based on polycrystalline NbRe films were investigated in order to preliminarily test the suitability of this material for the realization of superconducting single-photon detectors. The voltage-current characteristics measured on these samples show clear hysteresis. This is a fundamental ingredient for investigating single-photon detection as well as single vortex fluctuation phenomena in 2D NbRe-based devices.

Key words: superconducting detectors, ultrathin superconducting strips.

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