Abstrakti
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.
Alkuperäiskieli | Englanti |
---|---|
Artikkeli | 214503 |
Sivut | 1-10 |
Sivumäärä | 10 |
Julkaisu | Physical Review B |
Vuosikerta | 106 |
Numero | 21 |
DOI - pysyväislinkit | |
Tila | Julkaistu - 7 jouluk. 2022 |
OKM-julkaisutyyppi | A1 Julkaistu artikkeli, soviteltu |