Novel non-local effects in three-terminal hybrid devices with quantum dot

Abstract

We predict strong non-local effects in the three-terminal hybrid device, comprising the quantum dot embedded between two conducting leads and third superconducting reservoir. They result from competition between the ballistic electron transfer and the crossed Andreev scattering. The non-local voltage induced in response to the 'driving' current changes the magnitude and sign upon varying the gate potential and/or coupling to the superconducting lead. Such effect is robust both in the linear and non-linear regimes, where the screening and the long-range interactions play significant role. This novel subgap transport is provided by the Shiba states and can be contrasted with much weaker non-local effects observed hitherto in the three-terminal 'planar' junctions.

10 pages, 5 figures

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Cited by in corpus (12)

• Nonlocal conductance spectroscopy of Andreev bound states: Symmetry relations and BCS charges
• Andreev bound states probed in three-terminal quantum dots
• Local and non-local thermopowers in three-terminal nanostructures
• Quantum transport through a quantum dot side-coupled to a Majorana bound state pair in the presence of electron-phonon interaction
• Optimization of a three-terminal non-linear heat nano-engine
• Statistical correlations of currents flowing via proximized quantum dot
• Nonlinear electric and thermoelectric Andreev transport through a hybrid quantum dot coupled to ferromagnetic and superconducting leads
• Nonlocal Andreev transport through a quantum dot in a magnetic field: Interplay between Kondo, Zeeman, and Cooper-pair correlations
• Enhanced negative nonlocal conductance in an interacting quantum dot connected to two ferromagnetic leads and one superconducting lead
• Properties of multiterminal superconducting nanostructure with double quantum dot
• Long-range Cooper pair splitting by chiral Majorana edge states
• Three-body Fermi-liquid corrections for Andreev transport through quantum dots