Quantum Interference and Nonequilibrium Josephson Currents in Molecular Andreev Interferometers.

ABSTRACT: We study the quantum interference (QI) effects in three-terminal Andreev interferometers based on polyaromatic hydrocarbons (PAHs) under non-equilibrium conditions. The Andreev interferometer consists of a PAH coupled to two superconducting and one normal conducting terminals. We calculate the current measured in the normal lead as well as the current between the superconducting terminals under non-equilibrium conditions. We show that both the QI arising in the PAH cores and the bias voltage applied to a normal contact have a fundamental effect on the charge distribution associated with the Andreev Bound States (ABSs). QI can lead to a peculiar dependence of the normal current on the superconducting phase difference that was not observed in earlier studies of mesoscopic Andreev interferome

SUBMITTER: Plaszko NL 

PROVIDER: S-EPMC7420291 | biostudies-literature | 2020 May

REPOSITORIES: biostudies-literature