Gate control of superconducting current: Mechanisms, parameters, and technological potential
Reviewartikel, 2024
In conventional metal-oxide semiconductor (CMOS) electronics, the logic state of a device is set by a gate voltage (VG). The superconducting equivalent of such effect had remained unknown until it was recently shown that a VG can tune the superconducting current (supercurrent) flowing through a nanoconstriction in a superconductor. This gate-controlled supercurrent (GCS) can lead to superconducting logics like CMOS logics, but with lower energy dissipation. The physical mechanism underlying the GCS, however, remains under debate. In this review article, we illustrate the main mechanisms proposed for the GCS, and the material and device parameters that mostly affect it based on the evidence reported. We conclude that different mechanisms are at play in the different studies reported so far. We then outline studies that can help answer open questions on the effect and achieve control over it, which is key for applications. We finally give insights into the impact that the GCS can have toward high-performance computing with low-energy dissipation and quantum technologies.
Författare
L. Ruf
Universität Konstanz
C. Puglia
Scuola Normale Superiore di Pisa
T. Elalaily
Tanta University
Budapesti Muszaki es Gazdasagtudomanyi Egyetem
G. De Simoni
Scuola Normale Superiore di Pisa
François Joint
Chalmers, Rymd-, geo- och miljövetenskap, Onsala rymdobservatorium
M. Berke
Budapesti Muszaki es Gazdasagtudomanyi Egyetem
J. Koch
Universität Konstanz
A. Iorio
Scuola Normale Superiore di Pisa
S. Khorshidian
Universität Konstanz
Péter Makk
Budapesti Muszaki es Gazdasagtudomanyi Egyetem
Simone Gasparinetti
Chalmers, Mikroteknologi och nanovetenskap, Kvantteknologi
Szabolcs Csonka
Budapesti Muszaki es Gazdasagtudomanyi Egyetem
W. Belzig
Universität Konstanz
M. Cuoco
Universita degli Studi di Salerno
Francesco Giazotto
Scuola Normale Superiore di Pisa
E. Scheer
Universität Konstanz
A. Di Bernardo
Universita degli Studi di Salerno
Universität Konstanz
Applied Physics Reviews
1931-9401 (eISSN)
Vol. 11 4 041314Gate Tuneable Superconducting Quantum Electronics (SuperGate)
Europeiska kommissionen (EU) (EC/H2020/964398), 2021-03-01 -- 2024-08-31.
Ämneskategorier
Den kondenserade materiens fysik
DOI
10.1063/5.0222371