Long-Range Coherence in a Mesoscopic Metal near a Superconducting Interface

Abstract

We identify the different contributions to quantum interference in a mesoscopic metallic loop in contact with two superconducting electrodes. At low temperature, a flux-modulated Josephson coupling is observed with strong damping over the thermal length L_{T}. At higher temperature, the magnetoresistance exhibits large h/2e-periodic oscillations with 1/T power law decay. This flux-sensitive contribution arises from coherence of low-energy quasiparticles states over the phase-breaking length L_ϕ. Mesoscopic fluctuations contribute as a small h/e oscillation, resolved only in the purely normal state.

4 pages, 3 figures

References in corpus (2)

• Interference of two electrons entering a superconductor
• Subgap Conductivity of a Superconducting-Normal Tunnel Interface

Cited by in corpus (78)

• Random-Matrix Theory of Quantum Transport
• Quasiclassical Green's function approach to mesoscopic superconductivity
• The Josephson critical current in a long mesoscopic S-N-S junction
• Phase coherent transport in hybrid superconducting nanostructures
• Superconducting proximity effect in a mesoscopic ferromagnetic wire
• Re-entrance of the metallic conductance in a mesoscopic proximity superconductor
• Scattering matrix approach to the description of quantum electron transport
• Coherent Charge Transport in Metallic Proximity Structures
• Proximity DC squids in the long junction limit
• Phase Dependent Thermopower in Andreev Interferometers
• Multiple Andreev Reflection and Giant Excess Noise in Diffusive Superconductor/Normal-Metal/Superconductor Junctions
• Energy Resolved Supercurrent between two superconductors
• Coherent low-energy charge transport in a diffusive S-N-S junction
• Single Carbon Nanotube--Superconductor Entangler: noise correlations and EPR states
• Anomalous temperature dependence of the supercurrent through a chaotic Josephson junction
• Nonlinearity in NS transport: scattering matrix approach
• Distribution functions and current-correlations in normal-metal--superconductor hetero-structures
• Effective charges and statistical signatures in the noise of normal metal--superconductor junctions at arbitrary bias
• Thermoelectric effects in superconducting proximity structures
• Nonequilibrium ac Josephson effect in mesoscopic Nb-InAs-Nb junctions
• Geometrical enhancement of the proximity effect in quantum wires with extended superconducting tunnel contacts
• Anomalous density of states of a Luttinger liquid in contact with a superconductor
• Inverse proximity effect in superconductors near ferromagnetic material
• Josephson effects in a superconductor-normal metal mesoscopic structure with a dangling superconducting arm
• Quantitative measurements of the thermal resistance of Andreev interferometers
• Tuning a Josephson junction through a quantum critical point
• Phase Sensitive Shot Noise in an Andreev Interferometer
• Magnetic field influence on the proximity effect in semiconductor - superconductor hybrid structures and their thermal conductance
• Dissipative Electron Transport through Andreev Interferometers
• Long-range coherence and mesoscopic transport in N-S metallic structures
• Nonequilibrium Josephson-like effects in wide mesoscopic S-N-S junctions
• Interplay between spin-relaxation and Andreev reflection in ferromagnetic wires with superconducting contacts
• "Electro-flux" effect in superconducting hybrid Aharonov-Bohm rings
• The origin of bias independent conductance plateaus and zero bias conductance peaks in Bi2Se3/NbSe2 hybrid structures
• Resistive transport in a mesoscopic proximity superconductor
• Electrodynamics of Josephson junctions containing strong ferromagnets
• Observation of Anomalous Josephson Effect in Nonequilibrium Andreev Interferometers
• Controlling the Sign of Magnetoconductance in Andreev Quantum Dots
• Spin resolved Andreev reflection in ferromagnet-superconductor junctions with Zeeman splitting
• Sub-gap conductance in ferromagnetic-superconducting mesoscopic structures
• Andreev magnetotransport in low-dimensional proximity structures: Spin-dependent conductance enhancement
• Nonmetallic thermal transport in low-dimensional proximity structures with partially preserved time-reversal symmetry in a magnetic field
• reentrance effect in normal-metal/superconducting hybrid loops
• Anomalous transport in normal-superconducting and ferromagnetic-superconducting nanostructures
• Conductance fluctuations in mesoscopic normal-metal/superconductor samples
• Two-dimensional array of diffusive SNS junctions with high-transparent interfaces
• Current-phase relation and flux-dependent thermoelectricity in Andreev interferometers
• A ballistic two-dimensional-electron-gas Andreev interferometer
• Phase-sensitive thermoelectricity and long-range Josephson effect supported by thermal gradient
• Interplay between Josephson and Aharonov-Bohm effects in Andreev interferometers
• Subgap anomaly and above-energy-gap structure in chains of diffusive SNS junctions
• Local thermometry technique based on proximity-coupled superconductor/normal-metal/superconductor devices
• Topology-controlled thermopower oscillations in multiterminal Andreev interferometers
• Coherent Electron Transport in Superconducting-Normal Metallic Films
• Observation of large $h/2e$ and $h/4e$ oscillations in a proximity dc superconducting quantum interference device
• Proximity-induced transport in hybrid mesoscopic normal-superconducting metal structures
• Anomalous behaviour of S/N mesoscopic structures near T_c
• Influence of temperature dependent inelastic scattering on the superconducting proximity effect
• Superconducting Proximity Effect and Universal Conductance Fluctuations
• Phase coherent electron transport in asymmetric cross-like Andreev interferometers
• Evidence of Josephson coupling in a few-layer black phosphorus planar Josephson junction
• Fate of global superconductivity in arrays of long SNS junctions
• Fluctuation Conductivity in Mesoscopic Superconductor - Normal Metal Contacts
• Nonlocal correlations in a proximity-coupled normal metal
• On the absence of Shapiro-like steps in certain mesoscopic S-N-S junctions
• Phase-coherent thermoelectricity and non-equilibrium Josephson current in Andreev interferometers
• Resonant tunneling through Andreev levels
• Phase-coherent thermoelectricity in superconducting hybrids (Brief Review)
• $\pi -$shifted magnetoconductance oscillations in mesoscopic superconducting-normal-heterostructures
• Quantitative Simulation of the Superconducting Proximity Effect
• Severe discrepancies between experiment and theory in the superconducting proximity effect
• Long-range Josephson effect controlled by temperature gradient and circuit topology
• Strong phase coherence and vortex matter in a fractal system with proximity-induced superconductivity
• Transport and triplet superconducting condensate in mesoscopic ferromagnet-superconductor structures
• Signatures of Long-Range Spin-Triplet Component in Andreev Interferometer
• Transport across a normal-superconducting interface: a novel probe of electron-electron interactions in the normal metal
• Phase-sensitive quantum effects in Andreev conductance of the SNS system of metals with macroscopic phase breaking length
• Establishment of global phase coherence in a highly disordered fractal MgO/MgB2 nanocomposite: Roles of interface, morphology and defect