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

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arxiv 2104.01591 v1 pith:HKPUX7LG submitted 2021-04-04 cond-mat.mes-hall cond-mat.supr-con

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

Alexandros Vekris , Juan Carlos Estrada Salda\~na , Thomas Kanne , Mikelis Marnauza , Dags Olsteins , Furong Fan , Xiaobo Li , Thor Hvid-Olsen
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Xiaohui Qiu Hongqi Xu Jesper Nyg{\aa}rd Kasper Grove-Rasmussen
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classification cond-mat.mes-hall cond-mat.supr-con
keywords doublenanowiresparallelbridgeddepositedin-situjosephsonjunctions
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We characterize parallel double quantum dot Josephson junctions based on closely-grown double nanowires bridged by in-situ deposited superconductors. The parallel double dot behavior occurs despite the closeness of the nanowires and the potential risk of nanowire clamping during growth. By tuning the charge filling and lead couplings, we map out the simplest 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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