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arXiv · 1603.05585

Superconducting Quantum Interference Single-Electron Transistor

E. Enrico·F. Giazotto
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Abstract

We propose the concept of a quantized single-electron source based on the interplay between Coulomb blockade and magnetic flux-controllable superconducting proximity effect. We show that flux dependence of the induced energy gap in the density of states of a nanosized metallic wire can be exploited as an efficient tunable energy barrier which enables charge pumping configurations with enhanced functionalities. This control parameter strongly affects the charging landscape of a normal metal island with non-negligible Coulombic energy. Under a suitable evolution of a time-dependent magnetic flux the structure behaves likewise a turnstile for single electrons in a fully electrostatic regime.

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E. Enrico, F. Giazotto. 2016-05-31. Superconducting Quantum Interference Single-Electron Transistor. https://doi.org/10.1103/physrevapplied.5.064020

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