2018/06/04 by I. Schneider, Ina Schneider, Klaus Kronfeldner +4 · 10 citations
Mathematics · Physics and Astronomy · #Condensed matter physics #Duality (order theory) #Electrical resistivity and conductivity #Josephson effect #Magnetic field #Materials science #Mathematics #Phase (matter) #Physics #Physics of Superconductivity and Magnetism #Quantum and electron transport phenomena #Quantum mechanics #STRIPS #Superconductivity #Surface and Thin Film Phenomena #Tin #cond-mat.mes-hall
paper · pdf · doi:10.1103/physrevb.99.094522
published in Physical review. B./Physical review. B 99(9) (American Physical Society) · 5 pages, 4 figures + supplement
arxiv created 2018/06/04 · openalex publication_date 2019/03/29 · arxiv updated 2019/04/03 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
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\text\ensuremath-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\text\ensuremath-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.