Magnetic field-tuned superconductor/insulator transition in TiN nanostrips
arXiv:1806.01335 · doi:10.1103/PhysRevB.99.094522
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 towards 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 evidence that our critically disordered superconducting nanostrips behave like small self-organized random Josephson networks.
arXiv comment5 pages, 4 figures + supplement
References in corpus (25)
- Disorder-Induced Inhomogeneities of the Superconducting State Close to the Superconductor-Insulator Transition
- Inhomogeneous Pairing in Highly Disordered s-wave Superconductors
- Superconductivity in one dimension
- Coherent quantum phase slip
- Role of Spatial Amplitude Fluctuations in Highly Disordered s-Wave Superconductors
- Localized Superconductivity in the Quantum-Critical Region of the Disorder-Driven Superconductor-Insulator Transition in TiN Thin Films
- Measurement of the effect of quantum phase-slips in a Josephson Junction chain
- Universal scaling of the order-parameter distribution in strongly disordered superconductors
- Observation of Giant Positive Magnetoresistance in a Cooper Pair Insulator
- Quantum phase slip interference device based on superconducting nanowire
- Phase-Charge Duality of a Josephson junction in a fluctuating electromagnetic environment
- Coulomb blockade and Bloch oscillations in superconducting Ti nanowires
- Superinsulator-Superconductor Duality in Two Dimensions
- Confinement of superconducting fluctuations due to emergent electronic inhomogeneities
- NbSi nanowire quantum-phase-slip circuits: dc supercurrent blockade, microwave measurements and thermal analysis
- Effect of zero point phase fluctuations on Josephson tunneling
- Determination of the Superconductor-Insulator Phase Diagram for One-Dimensional Wires
- Superconductor-insulator transition in nanowires and nanowire arrays
- Dichotomy in short superconducting nanowires: thermal phase slippage vs. Coulomb blockade
- Quantum phase slips in superconducting wires with weak inhomogeneities
- Overdamped quantum phase diffusion and charging effects in Josephson junctions
- Quantum Phase Slips in one-dimensional Josephson Junction Chains
- Superconducting MoSi nanowires
- The parity effect in Josephson junction arrays
- Finite Size Effect in Amorphous Indium oxide
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