3etunneling processes in a superconducting single-electron tunneling transistor

1998/07/31 by P. Hadley, E. Delvigne, E. H. Visscher +3 · 2 citations
Physics and Astronomy · #Physics of Superconductivity and Magnetism #Quantum and electron transport phenomena #Superconductivity in MgB2 and Alloys #cond-mat.mes-hall

paper · pdf · doi:10.1103/physrevb.58.15317

4 pages, 5 figures

arxiv created 1998/07/31 · openalex publication_date 1998/12/15 · arxiv updated 2009/11/30 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28

Abstract

A current due to a tunneling event that involves three times the charge of an electron was observed in the current-voltage characteristics of a superconducting single-electron tunneling transistor. In this tunnel event, a Cooper pair tunnels through one tunnel barrier simultaneously with a quasiparticle that tunnels through a second tunnel barrier which is about 0.5 \ensuremathμm distant from the first tunnel barrier. This current was observed in a bias regime where current flow due to sequential quasiparticle tunneling is forbidden due to the Coulomb blockade.

Citations

• Charge transport in voltage-biased superconducting single-electron transistors

Cited by

• Supergap anomalies in cotunneling between normal-superconducting and between two superconducting leads via a small quantum dot
• Electron-Pair Resonance in the Coulomb Blockade