Blockade and Counterflow Supercurrent in Exciton-Condensate Josephson Junctions

2009/08/31 by Fabrizio Dolcini, Diego Rainis, Fabio Taddei +3 · 30 citations
Chemistry · Physics and Astronomy · #Bilayer #Chemistry #Cold Atom Physics and Bose-Einstein Condensates #Condensed matter physics #Drag #Exciton #Josephson effect #Mechanics #Membrane #Phase (matter) #Physics #Physics of Superconductivity and Magnetism #Quantum mechanics #Scattering #Strong Light-Matter Interactions #Superconductivity #Supercurrent #cond-mat.mes-hall #cond-mat.supr-con

paper · pdf · doi:10.1103/physrevlett.104.027004

published in Physical Review Letters 104(2), 027004 (American Physical Society) · 4 pages, 2 figures

openalex publication_date 2010/01/14 · arxiv created 2010/01/18 · arxiv updated 2010/02/08 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05

Abstract

We demonstrate that perfect conversion between charged supercurrents in superconductors and neutral supercurrents in electron-hole pair condensates is possible via a new Andreev-like scattering mechanism. As a result, when two superconducting circuits are coupled through a bilayer exciton condensate, the superflow in both layers is drastically modified. Depending on the phase biases the supercurrents can be completely blocked or exhibit perfect drag.

Citations

• Counterflow Measurements in Strongly Correlated GaAs Hole Bilayers: Evidence for Electron-Hole Pairing
• Phase-Coherent Transport in Graphene Quantum Billiards
• Bose–Einstein condensation of exciton polaritons
• Critical tunneling currents in the regime of bilayer excitons
• Bose–Einstein condensation of excitons in bilayer electron systems
• The electronic properties of graphene
• Josephson Currents through Junctions with Normal Metal Barriers
• Room-temperature superfluidity in graphene bilayers
• Resonantly Enhanced Tunneling in a Double Layer Quantum Hall Ferromagnet

Cited by

• Interlayer current near the edge of an InAs/GaSb double quantum well in proximity with a superconductor