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109 papers · 1 filter
Magnetic force microscopy versus scanning quantum-vortex microscopy: Probing pinning landscape in granular niobium films
A. Yu. Aladyshkin, R. A. Hovhannisyan, S. Yu. Grebenchuk +7
We provide an overview of the methodology and fundamental principles associated with newly developed experimental technique -- scanning quantum-vortex microscopy [Hovhannisyan et a…
Nernst effect and its thickness dependence in superconducting NbN films
Thomas Bouteiller, Arthur Marguerite, Ramzy Daou +6
Superconducting thin films and layered crystals display a Nernst signal generated by short-lived Cooper pairs above their critical temperature. Several experimental studies have br…
Misfit layer superconductors, tuneable bulk heterostructures with strong 2D effects
Tomas Samuely, Martin Gmitra, Tristan Cren +2
Atomically thin layered materials are systems with zero limit bulk-to-surface ratio. Their physical properties are determined by two-dimensionality and strongly affected by interfa…
Scanning quantum vortex microscopy reveals thickness-dependent pinning nano-network in superconducting Nb-films
Razmik A. Hovhannisyan, Sergey Yu. Grebenchuk, Andrey G. Shishkin +10
The presence of quantum vortices determines the electromagnetic response of superconducting materials and devices. Controlling the vortex motion, their pinning on intrinsic and art…
Josephson vortex-based memory
Dmitrii S. Kalashnikov, Vsevolod I. Ruzhitskiy, Andrey G. Shishkin +5
Josephson junctions are currently used as base elements of superconducting logic systems. Long enough junctions subject to magnetic field host quantum phase 2π-singularities - Jose…
Nernst response, viscosity and mobile entropy in vortex liquids
Kamran Behnia
In a liquid of superconducting vortices, a longitudinal thermal gradient generates a transverse electric field. This Nernst signal peaks at an intermediate temperature and magnetic…