Tuning the 0 − π Josephson junction with a magnetic impurity: Role of tunnel contacts, exchange coupling, e − e interactions and high-spin states

We propose Josephson junction with a high-spin magnetic impurity sandwiched between two superconductors. This system shows a π junction behavior as a function of the spin magnetic moment state of the impurity, the interface transparency, exchange coupling and electron-electron interactions in the sy...

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Detalles Bibliográficos
Autores principales: Pal, Subhajit, Benjamin, Colin
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2018
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5979961/
https://www.ncbi.nlm.nih.gov/pubmed/29581475
http://dx.doi.org/10.1038/s41598-018-23517-w
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author Pal, Subhajit
Benjamin, Colin
author_facet Pal, Subhajit
Benjamin, Colin
author_sort Pal, Subhajit
collection PubMed
description We propose Josephson junction with a high-spin magnetic impurity sandwiched between two superconductors. This system shows a π junction behavior as a function of the spin magnetic moment state of the impurity, the interface transparency, exchange coupling and electron-electron interactions in the system. The system is theoretically analyzed for possible reason behind the π shift. The crucial role of spin flip scattering is highlighted. Possible applications in quantum computation of our proposed tunable high spin magnetic impurity π junction is underscored.
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spelling pubmed-59799612018-06-06 Tuning the 0 − π Josephson junction with a magnetic impurity: Role of tunnel contacts, exchange coupling, e − e interactions and high-spin states Pal, Subhajit Benjamin, Colin Sci Rep Article We propose Josephson junction with a high-spin magnetic impurity sandwiched between two superconductors. This system shows a π junction behavior as a function of the spin magnetic moment state of the impurity, the interface transparency, exchange coupling and electron-electron interactions in the system. The system is theoretically analyzed for possible reason behind the π shift. The crucial role of spin flip scattering is highlighted. Possible applications in quantum computation of our proposed tunable high spin magnetic impurity π junction is underscored. Nature Publishing Group UK 2018-03-26 /pmc/articles/PMC5979961/ /pubmed/29581475 http://dx.doi.org/10.1038/s41598-018-23517-w Text en © The Author(s) 2018 Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.
spellingShingle Article
Pal, Subhajit
Benjamin, Colin
Tuning the 0 − π Josephson junction with a magnetic impurity: Role of tunnel contacts, exchange coupling, e − e interactions and high-spin states
title Tuning the 0 − π Josephson junction with a magnetic impurity: Role of tunnel contacts, exchange coupling, e − e interactions and high-spin states
title_full Tuning the 0 − π Josephson junction with a magnetic impurity: Role of tunnel contacts, exchange coupling, e − e interactions and high-spin states
title_fullStr Tuning the 0 − π Josephson junction with a magnetic impurity: Role of tunnel contacts, exchange coupling, e − e interactions and high-spin states
title_full_unstemmed Tuning the 0 − π Josephson junction with a magnetic impurity: Role of tunnel contacts, exchange coupling, e − e interactions and high-spin states
title_short Tuning the 0 − π Josephson junction with a magnetic impurity: Role of tunnel contacts, exchange coupling, e − e interactions and high-spin states
title_sort tuning the 0 − π josephson junction with a magnetic impurity: role of tunnel contacts, exchange coupling, e − e interactions and high-spin states
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5979961/
https://www.ncbi.nlm.nih.gov/pubmed/29581475
http://dx.doi.org/10.1038/s41598-018-23517-w
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