Josephson junctions in double nanowires bridged by in-situ deposited superconductors

Alexandros Vekris; Juan Carlos Estrada Saldaña; Thomas Kanne; Mikelis Marnauza; Dags Olsteins; Furong Fan; Xiaobo Li; Thor Hvid-Olsen; Xiaohui Qiu; Hongqi Xu; Jesper Nygård; Kasper Grove-Rasmussen

doi:10.1103/PhysRevResearch.3.033240

Josephson junctions in double nanowires bridged by in-situ deposited superconductors

Alexandros Vekris, Juan Carlos Estrada Saldaña, Thomas Kanne, Mikelis Marnauza, Dags Olsteins, Furong Fan, Xiaobo Li, Thor Hvid-Olsen, Xiaohui Qiu, Hongqi Xu, Jesper Nygård, Kasper Grove-Rasmussen^*

^*Corresponding author for this work

Condensed Matter Physics

Research output: Contribution to journal › Journal article › Research › peer-review

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Abstract

We characterize parallel double quantum dot Josephson junctions based on closely spaced double nanowires bridged by in-situ deposited superconductors. The parallel double dot behavior occurs despite the proximity of the two nanowires and the potential risk of nanowire clamping during growth. By tuning the charge filling and lead couplings, we map out the parallel double quantum dot Yu-Shiba-Rusinov phase diagram. Our quasi-independent two-wire hybrids show promise for the realization of exotic topological phases.

Original language	English
Article number	033240
Journal	Physical Review Research
Volume	3
Number of pages	9
DOIs	https://doi.org/10.1103/PhysRevResearch.3.033240
Publication status	Published - 10 Sep 2021

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Josephson junctions in double nanowires bridged by in-situ deposited superconductorsFinal published version, 1.36 MBLicence: CC BY

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Josephson junctions in double nanowires bridged by in-situ deposited superconductors. / Vekris, Alexandros; Estrada Saldaña, Juan Carlos; Kanne, Thomas; Marnauza, Mikelis; Olsteins, Dags; Fan, Furong; Li, Xiaobo; Hvid-Olsen, Thor; Qiu, Xiaohui; Xu, Hongqi; Nygård, Jesper ; Grove-Rasmussen, Kasper.

In: Physical Review Research, Vol. 3, 033240, 10.09.2021.

Research output: Contribution to journal › Journal article › Research › peer-review

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AU - Olsteins, Dags

AU - Fan, Furong

AU - Li, Xiaobo

AU - Hvid-Olsen, Thor

AU - Qiu, Xiaohui

AU - Xu, Hongqi

AU - Nygård, Jesper

AU - Grove-Rasmussen, Kasper

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AB - We characterize parallel double quantum dot Josephson junctions based on closely spaced double nanowires bridged by in-situ deposited superconductors. The parallel double dot behavior occurs despite the proximity of the two nanowires and the potential risk of nanowire clamping during growth. By tuning the charge filling and lead couplings, we map out the parallel double quantum dot Yu-Shiba-Rusinov phase diagram. Our quasi-independent two-wire hybrids show promise for the realization of exotic topological phases.

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