Nonreciprocal microwave responses in Nb/Au/NbSe₂ Josephson junctions

The nonreciprocal Josephson junction, the Josephson diode, opens a door for superconducting circuit technology. Here, we report on nonreciprocal behaviors in Nb/Au/NbSe2 Josephson junctions. The strong asymmetry could be seen in the current-voltage characteristics, which most likely arises from time...

Full description

Saved in:
Bibliographic Details
Main Authors: Tian, Wanghao, Zhang, Huili, Zhang, Duo, Shao, Weihua
Other Authors: School of Electrical and Electronic Engineering
Format: Article
Language:English
Published: 2023
Subjects:
Online Access:https://hdl.handle.net/10356/171566
Tags: Add Tag
No Tags, Be the first to tag this record!
Institution: Nanyang Technological University
Language: English
id sg-ntu-dr.10356-171566
record_format dspace
spelling sg-ntu-dr.10356-1715662023-11-03T15:40:19Z Nonreciprocal microwave responses in Nb/Au/NbSe₂ Josephson junctions Tian, Wanghao Zhang, Huili Zhang, Duo Shao, Weihua School of Electrical and Electronic Engineering Engineering::Electrical and electronic engineering Abrikosov Vortices Josephson The nonreciprocal Josephson junction, the Josephson diode, opens a door for superconducting circuit technology. Here, we report on nonreciprocal behaviors in Nb/Au/NbSe2 Josephson junctions. The strong asymmetry could be seen in the current-voltage characteristics, which most likely arises from time symmetry breaking due to Abrikosov vortices, indicated by an asymmetric Fraunhofer pattern. The nonreciprocal microwave responses are systematically investigated compared to a numerical simulation based on a resistively and capacitively shunted junction model, which could well capture the asymmetric behaviors and rule out some artifacts such as other parasitic Josephson-like structures. Based on the nonreciprocal microwave responses, we put forward a proposal for a switchable Josephson diode controlled by an external microwave, which might provide an opportunity for next-generation microwave-related superconducting circuits. Published version We gratefully acknowledge financial support from the Scientific Research Foundation for Ph.D., Nanjing Institute of Technology (Grant Nos. YKJ2019108 and YKJ2019109) and the Jiangsu Province Double Innovation Doctor. 2023-10-31T04:26:35Z 2023-10-31T04:26:35Z 2023 Journal Article Tian, W., Zhang, H., Zhang, D. & Shao, W. (2023). Nonreciprocal microwave responses in Nb/Au/NbSe₂ Josephson junctions. Applied Physics Letters, 123(11), 112601-1-112601-6. https://dx.doi.org/10.1063/5.0166904 0003-6951 https://hdl.handle.net/10356/171566 10.1063/5.0166904 2-s2.0-85171556303 11 123 112601-1 112601-6 en Applied Physics Letters © 2023 Author(s). Published under an exclusive license by AIP Publishing. All rights reserved. This article may be downloaded for personal use only. Any other use requires prior permission of the copyright holder. The Version of Record is available online at http://doi.org/10.1063/5.0166904 application/pdf
institution Nanyang Technological University
building NTU Library
continent Asia
country Singapore
Singapore
content_provider NTU Library
collection DR-NTU
language English
topic Engineering::Electrical and electronic engineering
Abrikosov Vortices
Josephson
spellingShingle Engineering::Electrical and electronic engineering
Abrikosov Vortices
Josephson
Tian, Wanghao
Zhang, Huili
Zhang, Duo
Shao, Weihua
Nonreciprocal microwave responses in Nb/Au/NbSe₂ Josephson junctions
description The nonreciprocal Josephson junction, the Josephson diode, opens a door for superconducting circuit technology. Here, we report on nonreciprocal behaviors in Nb/Au/NbSe2 Josephson junctions. The strong asymmetry could be seen in the current-voltage characteristics, which most likely arises from time symmetry breaking due to Abrikosov vortices, indicated by an asymmetric Fraunhofer pattern. The nonreciprocal microwave responses are systematically investigated compared to a numerical simulation based on a resistively and capacitively shunted junction model, which could well capture the asymmetric behaviors and rule out some artifacts such as other parasitic Josephson-like structures. Based on the nonreciprocal microwave responses, we put forward a proposal for a switchable Josephson diode controlled by an external microwave, which might provide an opportunity for next-generation microwave-related superconducting circuits.
author2 School of Electrical and Electronic Engineering
author_facet School of Electrical and Electronic Engineering
Tian, Wanghao
Zhang, Huili
Zhang, Duo
Shao, Weihua
format Article
author Tian, Wanghao
Zhang, Huili
Zhang, Duo
Shao, Weihua
author_sort Tian, Wanghao
title Nonreciprocal microwave responses in Nb/Au/NbSe₂ Josephson junctions
title_short Nonreciprocal microwave responses in Nb/Au/NbSe₂ Josephson junctions
title_full Nonreciprocal microwave responses in Nb/Au/NbSe₂ Josephson junctions
title_fullStr Nonreciprocal microwave responses in Nb/Au/NbSe₂ Josephson junctions
title_full_unstemmed Nonreciprocal microwave responses in Nb/Au/NbSe₂ Josephson junctions
title_sort nonreciprocal microwave responses in nb/au/nbse₂ josephson junctions
publishDate 2023
url https://hdl.handle.net/10356/171566
_version_ 1781793690802454528