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Schneider, I. ; Kronfeldner, Klaus ; Baturina, Tatyana I. ; Strunk, Christoph

Quantum phase slips and number-phase duality in disordered TiN nanostrips

Schneider, I., Kronfeldner, Klaus, Baturina, Tatyana I. and Strunk, Christoph (2019) Quantum phase slips and number-phase duality in disordered TiN nanostrips. Phys. Rev. B 99, 094522.

Date of publication of this fulltext: 11 Jun 2021 04:59
Article
DOI to cite this document: 10.5283/epub.45982


Abstract

We have measured the electric transport properties of TiN nanostrips with different widths. At zero magnetic field, the temperature-dependent resistance R(T) saturates at a finite resistance toward low temperatures, which results from quantum phase slips in the narrower strips. We find that the current-voltage (I-V) characteristics of the narrowest strips are equivalent to those of small ...

We have measured the electric transport properties of TiN nanostrips with different widths. At zero magnetic field, the temperature-dependent resistance R(T) saturates at a finite resistance toward low temperatures, which results from quantum phase slips in the narrower strips. We find that the current-voltage (I-V) characteristics of the narrowest strips are equivalent to those of small Josephson junctions. Applying a transverse magnetic field drives the devices into a reentrant insulating phase, with I-V characteristics dual to those in the superconducting regime. The results provide evidence that our critically disordered superconducting nanostrips behave like small self-organized random Josephson networks.



Involved Institutions


Details

Item typeArticle
Journal or Publication TitlePhys. Rev. B
Publisher:AMER PHYSICAL SOC
Place of Publication:COLLEGE PK
Volume:99
Page Range:094522
Date29 March 2019
InstitutionsPhysics > Institute of Experimental and Applied Physics
Physics > Institute of Experimental and Applied Physics > Chair Professor Weiss > Group Christoph Strunk
Identification Number
ValueType
10.1103/PhysRevB.99.094522DOI
KeywordsSUPERCONDUCTING NANOWIRES; JOSEPHSON; FLUCTUATIONS; TRANSITION; OSCILLATIONS; SCALE; DC;
Dewey Decimal Classification500 Science > 530 Physics
StatusPublished
RefereedYes, this version has been refereed
Created at the University of RegensburgYes
URN of the UB Regensburgurn:nbn:de:bvb:355-epub-459820
Item ID45982

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