This article is cited in 3 papers

CONDENSED MATTER

Superconducting properties of long TiN wires

A. Yu. Mironov^ab, S. V. Postolova^ab, D. A. Nasimov<sup>a

a</sup> Rzhanov Institute of Semiconductor Physics, Siberian Branch, Russian Academy of Sciences, Novosibirsk, Russia
^b Novosibirsk State University, Novosibirsk, Russia

Abstract: The low-temperature transport properties of titanium nitride wires with the width comparable with or much larger than the superconducting coherence length are studied experimentally. It is shown that the reduction of the width of wires does not affect the transport properties at the temperatures above the superconducting transition temperature and electron transport in this temperature range is determined by quantum contributions to the conductivity from weak localization and electron-electron interaction. It is established that the reduction of the width of wires does not change the superconducting transition temperature but completely suppresses the topological Berezinskii-Kosterlitz-Thouless transition. It is found that the threshold magnetic field increases with a decrease in the width of wires.

Received: 20.09.2016
Revised: 20.10.2016

DOI: 10.7868/S0370274X16230053

 English version: Journal of Experimental and Theoretical Physics Letters, 2016, 104:11, 766–770

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