Probing interfacial pair breaking in tunnel junctions based on the first and the second harmonics of the Josephson current

Abstract

It will be shown that a pronounced interfacial pair breaking can be identified in Josephson tunnel junctions provided the first j_{1c} and the second j_{2c} harmonics of the supercurrent, as well as the depairing current in the bulk j_{dp}, are known. Namely, within the Ginzburg-Landau theory a strong interfacial pair breaking results in the relation j_{2c}j_{dp}>>j_{1c}^2, while in standard junctions, with negligibly small pair breaking, the relation of opposite character takes place.

6 pages, published version

References in corpus (13)

• Josephson junctions with negative second harmonic in the current-phase relation: properties of novel varphi-junctions
• Charge Transport in Junctions between D-Wave Superconductors
• Spin-dependent boundary conditions for isotropic superconducting Green's functions
• Thermodynamics of a d-wave Superconductor Near a Surface
• The Effect of Surfaces on the Tunneling Density of States of an Anisotropically Paired Superconductor
• Anomalous Periodicity of the Current-Phase Relationship of Grain-Boundary Josephson Junctions in High-Tc Superconductors
• Peculiar properties of the Josephson junction at the transition from 0 to Pi state
• Depairing currents in the superconductor/ferromagnet proximity system Nb/Fe
• Dynamical effects of an unconventional current-phase relation in YBCO dc-SQUIDs
• Josephson tunneling in high-$T_c$ superconductors
• Anharmonic Josephson current in junctions with an interface pair breaking
• Angular dependence of Josephson currents in unconventional superconducting junctions
• Landau Ginzburg theory of the d-wave Josephson junction

Cited by in corpus (6)

• Non-Fraunhofer patterns of the anharmonic Josephson current influenced by a strong interfacial pair breaking
• Proximity-reduced range of internal phase differences in double Josephson junctions with closely spaced interfaces
• Magnetic penetration depth and vortex structure in anharmonic superconducting junctions with an interfacial pair breaking
• The magnetic penetration depth influenced by the proximity to the surface
• Phase relations in superconductor-normal metal-superconductor tunnel junctions
• Boundary conditions for the order parameter and the proximity influenced internal phase differences in double superconducting junctions