Josephson Current in Rashba-Based Superconducting Nanowires with Geometric Misalignment: Rashba-Based Superconducting Nanowires with Geometric Misalignment

Z. J. Ying; M. Cuoco; P. Gentile; C. Ortix

doi:10.1109/ISEC.2017.8314198

Josephson Current in Rashba-Based Superconducting Nanowires with Geometric Misalignment: Rashba-Based Superconducting Nanowires with Geometric Misalignment

Z. J. Ying
, M. Cuoco
, P. Gentile
, C. Ortix

University of Salerno

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Academic › peer-review

Abstract

We investigate the properties of a weak link between two Rashba-based superconducting nanowires with geometric misalignment. By applying an external magnetic field the system can be driven into a topological non-trivial regime. We demonstrate that the Josephson current can be modulated in amplitude and sign through the variation of the applied field and, remarkably, via the angle controlling the spin-orbit locking mismatch at the interface of the nanowires. The proposed setup with misaligned coplanar nanowires provides the building block configuration for the manipulation of coherent transport via geometric-controlled mixing/splitting of interface states.

Original language	English
Title of host publication	2017 16th International Superconductive Electronics Conference, ISEC 2017
Publisher	IEEE
Pages	1-3
Number of pages	3
ISBN (Electronic)	9781509058686
DOIs	https://doi.org/10.1109/ISEC.2017.8314198
Publication status	Published - 9 Mar 2018
Event	16th International Superconductive Electronics Conference, ISEC 2017 - Napoli, Italy Duration: 12 Jun 2017 → 16 Jun 2017

Conference

Conference	16th International Superconductive Electronics Conference, ISEC 2017
Country/Territory	Italy
City	Napoli
Period	12/06/17 → 16/06/17

Funding

ACKNOWLEDGMENT We acknowledge the financial support of the Future and Emerging Technologies (FET) programme under FET-Open grant number: 618083 (CNTQC). C.O. acknowledges support from the Deutsche Forschungsgemeinschaft (grant No. OR 404/1-1) and from VIDI grant (project 680-47-543) financed by the Netherlands Organization for Scientific Research (NWO).

Keywords

curved nanostructures
Rashba spin-orbit coupling
superconducting nanowire
topological states

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10.1109/ISEC.2017.8314198

Josephson_Current_in_Rashba-Based_Superconducting_Nanowires_with_Geometric_Misalignment_Rashba-Based_Superconducting_Nanowires_with_Geometric_MisalignmentFinal published version, 433 KBLicence: Taverne

Cite this

@inproceedings{71be39e2cdba4a91ba896aba40999604,

title = "Josephson Current in Rashba-Based Superconducting Nanowires with Geometric Misalignment: Rashba-Based Superconducting Nanowires with Geometric Misalignment",

abstract = "We investigate the properties of a weak link between two Rashba-based superconducting nanowires with geometric misalignment. By applying an external magnetic field the system can be driven into a topological non-trivial regime. We demonstrate that the Josephson current can be modulated in amplitude and sign through the variation of the applied field and, remarkably, via the angle controlling the spin-orbit locking mismatch at the interface of the nanowires. The proposed setup with misaligned coplanar nanowires provides the building block configuration for the manipulation of coherent transport via geometric-controlled mixing/splitting of interface states.",

keywords = "curved nanostructures, Rashba spin-orbit coupling, superconducting nanowire, topological states",

author = "Ying, \{Z. J.\} and M. Cuoco and P. Gentile and C. Ortix",

year = "2018",

month = mar,

day = "9",

doi = "10.1109/ISEC.2017.8314198",

language = "English",

pages = "1--3",

booktitle = "2017 16th International Superconductive Electronics Conference, ISEC 2017",

publisher = "IEEE",

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note = "16th International Superconductive Electronics Conference, ISEC 2017 ; Conference date: 12-06-2017 Through 16-06-2017",

}

Ying, ZJ, Cuoco, M, Gentile, P & Ortix, C 2018, Josephson Current in Rashba-Based Superconducting Nanowires with Geometric Misalignment: Rashba-Based Superconducting Nanowires with Geometric Misalignment. in 2017 16th International Superconductive Electronics Conference, ISEC 2017. IEEE, pp. 1-3, 16th International Superconductive Electronics Conference, ISEC 2017, Napoli, Italy, 12/06/17. https://doi.org/10.1109/ISEC.2017.8314198

Josephson Current in Rashba-Based Superconducting Nanowires with Geometric Misalignment: Rashba-Based Superconducting Nanowires with Geometric Misalignment. / Ying, Z. J.; Cuoco, M.; Gentile, P. et al.
2017 16th International Superconductive Electronics Conference, ISEC 2017. IEEE, 2018. p. 1-3.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Academic › peer-review

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AU - Gentile, P.

AU - Ortix, C.

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N2 - We investigate the properties of a weak link between two Rashba-based superconducting nanowires with geometric misalignment. By applying an external magnetic field the system can be driven into a topological non-trivial regime. We demonstrate that the Josephson current can be modulated in amplitude and sign through the variation of the applied field and, remarkably, via the angle controlling the spin-orbit locking mismatch at the interface of the nanowires. The proposed setup with misaligned coplanar nanowires provides the building block configuration for the manipulation of coherent transport via geometric-controlled mixing/splitting of interface states.

AB - We investigate the properties of a weak link between two Rashba-based superconducting nanowires with geometric misalignment. By applying an external magnetic field the system can be driven into a topological non-trivial regime. We demonstrate that the Josephson current can be modulated in amplitude and sign through the variation of the applied field and, remarkably, via the angle controlling the spin-orbit locking mismatch at the interface of the nanowires. The proposed setup with misaligned coplanar nanowires provides the building block configuration for the manipulation of coherent transport via geometric-controlled mixing/splitting of interface states.

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KW - Rashba spin-orbit coupling

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KW - topological states

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DO - 10.1109/ISEC.2017.8314198

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BT - 2017 16th International Superconductive Electronics Conference, ISEC 2017

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Josephson Current in Rashba-Based Superconducting Nanowires with Geometric Misalignment: Rashba-Based Superconducting Nanowires with Geometric Misalignment

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Keywords

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