372 citations · 2k across the 26 of their papers we have counts for
10 papers · 1 filter
Supercurrent and Andreev bound state dynamics in superconducting quantum point contacts under microwave irradiation
F. S. Bergeret, P. Virtanen, A. Ozaeta +2
We present here an extensive theoretical analysis of the supercurrent of a superconducting point contact of arbitrary transparency in the presence of a microwave field. Our study i…
Theory of microwave-assisted supercurrent in quantum point contacts
F. S. Bergeret, P. Virtanen, T. T. Heikkilä +1
We present a microscopic theory of the effect of a microwave field on the supercurrent through a quantum point contact of arbitrary transmission. Our theory predicts that: (i) for…
Magnetic Interference Patterns and Vortices in Diffusive SNS junctions
J. C. Cuevas, F. S. Bergeret
We study theoretically the electronic and transport properties of a diffusive superconductor-normal metal-superconductor (SNS) junction in the presence of a perpendicular magnetic…
Symmetries of Pairing Correlations in Superconductor-Ferromagnet Nanostructures
M. Eschrig, T. Lofwander, T. Champel +3
Using selection rules imposed by the Pauli principle, we classify pairing correlations according to their symmetry properties with respect to spin, momentum, and energy. We observe…
Subharmonic gap structure in short ballistic graphene junctions
J. C. Cuevas, A. Levy Yeyati
We present a theoretical analysis of the current-voltage characteristics of a ballistic superconductor-normal-superconductor (SNS) junction, in which a strip of graphene is coupled…
Transfer-matrix description of heterostructures involving superconductors and ferromagnets
J. Kopu, M. Eschrig, J. C. Cuevas +1
Based on the technique of quasiclassical Green's functions, we construct a theoretical framework for describing heterostructures consisting of superconductors and/or spin-polarized…
Theory of Half Metal-Superconductor Heterostructures
M. Eschrig, J. Kopu, J. C. Cuevas +1
We investigate the coupling between two singlet superconductors separated by a half-metallic magnet. The mechanism behind the coupling is provided by the rotation of the quasiparti…
Shot noise and multiple Andreev reflections in d-wave superconductors
J. C. Cuevas, M. Fogelstrom
We present a theoretical analysis of the shot noise in d-wave/d-wave contacts with arbitrary transparency, including the contribution of multiple Andreev reflections. The multiple…
Transport through superconductor/magnetic dot/superconductor structures
M. Andersson, J. C. Cuevas, M. Fogelstrom
The coupling of two s-wave superconductors through a small magnetic dot is discussed. Assuming that the dot charging energy is small compared to the superconducting gap, …
Quasiclassical description of transport through superconducting contacts
J. C. Cuevas, M. Fogelstrom
We present a theoretical study of transport properties through superconducting contacts based on a new formulation of boundary conditions that mimics interfaces for the quasiclassi…