Bulletin of the American Physical Society
APS March Meeting 2022
Volume 67, Number 3
Monday–Friday, March 14–18, 2022; Chicago
Session B61: Superconductivity: Proximity & Andreev
11:30 AM–2:18 PM,
Monday, March 14, 2022
Room: Hyatt Regency Hotel -Field
Sponsoring
Unit:
DCMP
Chair: Sanu Mishra, Los alamos National Lab
Abstract: B61.00002 : Hybrid superconductor-semiconductor double nanowire devices
11:42 AM–11:54 AM
Presenter:
Kasper Grove-Rasmussen
(Niels Bohr Institute, University of Copenhagen)
Author:
Kasper Grove-Rasmussen
(Niels Bohr Institute, University of Copenhagen)
We present some of our recent activities on hybrid superconductor-semiconductor double nanowire devices, which are of particular interest for studying phenomena related to sub-gap quantum states such as Yu-Shiba-Rusinov, Andreev and Majorana states. The double nanowire material system consists of two closely grown InAs nanowires covered by an in-situ metalized half/full (epitaxially matched) Al shell [1]. We show results transport measurements from three types of hybrid double nanowires devices: parallel double quantum dot Josephson junctions [2], Little-Parks devices [3] and superconducting islands [1] in which Yu-Shiba-Rusinov physics, critical current modulation and Coulomb blockade can be investigated.
[1] T. Kanne, D. Olsteins, M. Marnauza, A. Vekris, J. C. Estrada Saldaña, S. Loric, R. D. Schlosser, D. Ross, S. Csonka, K. Grove-Rasmussen, J. Nygård. “Double nanowires for hybrid quantum devices”., arXiv:2103.13938 (to appear in Advanced Functional materials (2021)).
[2] A. Vekris, J. C. Estrada Saldaña, T. Kanne, M. Marnauza, D. Olsteins, F. Fan, X. Li, T. Hvid-Olsen, X. Qiu, H.Q. Xu, J. Nygård, K. Grove-Rasmussen. “Josephson junctions in double nanowires bridged by in-situ deposited superconductors”, Phys. Rev. Research 3, 033240 (2021).
[3] A. Vekris, J. C. Estrada Saldaña, J. de Bruijckere, S. Lorìc, T. Kanne, M. Marnauza, D. Olsteins, J. Nygård, K. Grove-Rasmussen, “Asymmetric Little-Parks Oscillations in Full Shell Double Nanowires”, Scientific Reports 11, 19034 (2021).
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