aalto1 untyped-item.component.html
Energy distribution controlled ballistic Josephson junction
Loading...
Access rights
openAccess
publishedVersion
URL
Journal Title
Journal ISSN
Volume Title
A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
This publication is imported from Aalto University research portal.
View publication in the Research portal (opens in new window)
View/Open full text file from the Research portal (opens in new window)
View publication in the Research portal (opens in new window)
View/Open full text file from the Research portal (opens in new window)
Unless otherwise stated, all rights belong to the author. You may download, display and print this publication for Your own personal use. Commercial use is prohibited.
Authors
Date
Department
Major/Subject
Mcode
Degree programme
Language
en
Pages
10
Series
Physical Review B, Volume 106, issue 21, pp. 1-10
Abstract
We report an experimental study on the tuning of supercurrent in a ballistic graphene-based Josephson junction by applying a control voltage to a transverse normal channel. In this four-terminal geometry, the control voltage changes the occupation of Andreev states in the Josephson junction, thereby tuning the magnitude of the supercurrent. As a function of gate voltage, we find two different regimes characterized by a double-step distribution and a hot-electron distribution, respectively. Our work opens opportunities to design highly controllable Josephson junctions for tunable superconducting quantum circuits.
Description
Funding Information: The authors thank R. Mélin and C. Winkelmann for fruitful discussions. This work was partly supported by Helmholtz Society through program STN and the DFG via the Projects No. DA 1280/3-1, No. DA 1280/7-1, and No. BE 4422/4-1. Publisher Copyright: © 2022 American Physical Society.
Keywords
Other note
Citation
Pandey, P, Beckmann, D & Danneau, R 2022, 'Energy distribution controlled ballistic Josephson junction', Physical Review B, vol. 106, no. 21, 214503, pp. 1-10. https://doi.org/10.1103/PhysRevB.106.214503