Print Email Facebook Twitter Coherent transport properties of a three-terminal hybrid superconducting interferometer Title Coherent transport properties of a three-terminal hybrid superconducting interferometer Author Vischi, F. (Istituto Nanoscienze-CNR and Scuola Normale Superiore; University of Pisa) Carrega, M. (Istituto Nanoscienze-CNR and Scuola Normale Superiore) Strambini, E. (Istituto Nanoscienze-CNR and Scuola Normale Superiore) D'Ambrosio, S. (Istituto Nanoscienze-CNR and Scuola Normale Superiore) Bergeret, F. S. (Centro Mixto CSIC-UPV/EHU; Donostia International Physics Center) Nazarov, Y.V. (TU Delft QN/Nazarov Group) Giazotto, F. (Istituto Nanoscienze-CNR and Scuola Normale Superiore) Date 2017-02-13 Abstract We present an exhaustive theoretical analysis of a double-loop Josephson proximity interferometer, such as the one recently realized by Strambini et al. for control of the Andreev spectrum via an external magnetic field. This system, called ω-SQUIPT, consists of a T-shaped diffusive normal metal (N) attached to three superconductors (S) forming a double-loop configuration. By using the quasiclassical Green-function formalism, we calculate the local normalized density of states, the Josephson currents through the device, and the dependence of the former on the length of the junction arms, the applied magnetic field, and the S/N interface transparencies. We show that by tuning the fluxes through the double loop, the system undergoes transitions from a gapped to a gapless state. We also evaluate the Josephson currents flowing in the different arms as a function of magnetic fluxes, and we explore the quasiparticle transport by considering a metallic probe tunnel-coupled to the Josephson junction and calculating its I-V characteristics. Finally, we study the performances of the ω-SQUIPT and its potential applications by investigating its electrical and magnetometric properties. To reference this document use: http://resolver.tudelft.nl/uuid:0828ede8-9547-41fb-b1ba-602c160ae425 DOI https://doi.org/10.1103/PhysRevB.95.054504 ISSN 1098-0121 Source Physical Review B (Condensed Matter and Materials Physics), 95 (5) Part of collection Institutional Repository Document type journal article Rights © 2017 F. Vischi, M. Carrega, E. Strambini, S. D'Ambrosio, F. S. Bergeret, Y.V. Nazarov, F. Giazotto Files PDF PhysRevB.95.054504.pdf 4.13 MB Close viewer /islandora/object/uuid:0828ede8-9547-41fb-b1ba-602c160ae425/datastream/OBJ/view