Yu-Shiba-Rusinov bound states induced by a spin flipper in the vicinity of a s-wave superconductor

We theoretically study the formation and characteristics of Yu-Shiba-Rusinov bound states within the superconducting gap using a BTK approach in presence of a spin flipper (high spin magnetic impurity). We focus on the zero energy in the conductance spectra and show how a peak is formed at E = 0 due...

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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/PMC6085302/
https://www.ncbi.nlm.nih.gov/pubmed/30093693
http://dx.doi.org/10.1038/s41598-018-30346-4
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author Pal, Subhajit
Benjamin, Colin
author_facet Pal, Subhajit
Benjamin, Colin
author_sort Pal, Subhajit
collection PubMed
description We theoretically study the formation and characteristics of Yu-Shiba-Rusinov bound states within the superconducting gap using a BTK approach in presence of a spin flipper (high spin magnetic impurity). We focus on the zero energy in the conductance spectra and show how a peak is formed at E = 0 due to flipping of the magnetic impurity spin, but for no flip case a dip forms at E = 0 in the conductance spectra. This E = 0 conductance peak is almost quantized at 2e(2)/h values, however it arises due to non-topological reasons in contrast to the E = 0 peak formed due to Majorana states.
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spelling pubmed-60853022018-08-13 Yu-Shiba-Rusinov bound states induced by a spin flipper in the vicinity of a s-wave superconductor Pal, Subhajit Benjamin, Colin Sci Rep Article We theoretically study the formation and characteristics of Yu-Shiba-Rusinov bound states within the superconducting gap using a BTK approach in presence of a spin flipper (high spin magnetic impurity). We focus on the zero energy in the conductance spectra and show how a peak is formed at E = 0 due to flipping of the magnetic impurity spin, but for no flip case a dip forms at E = 0 in the conductance spectra. This E = 0 conductance peak is almost quantized at 2e(2)/h values, however it arises due to non-topological reasons in contrast to the E = 0 peak formed due to Majorana states. Nature Publishing Group UK 2018-08-09 /pmc/articles/PMC6085302/ /pubmed/30093693 http://dx.doi.org/10.1038/s41598-018-30346-4 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
Yu-Shiba-Rusinov bound states induced by a spin flipper in the vicinity of a s-wave superconductor
title Yu-Shiba-Rusinov bound states induced by a spin flipper in the vicinity of a s-wave superconductor
title_full Yu-Shiba-Rusinov bound states induced by a spin flipper in the vicinity of a s-wave superconductor
title_fullStr Yu-Shiba-Rusinov bound states induced by a spin flipper in the vicinity of a s-wave superconductor
title_full_unstemmed Yu-Shiba-Rusinov bound states induced by a spin flipper in the vicinity of a s-wave superconductor
title_short Yu-Shiba-Rusinov bound states induced by a spin flipper in the vicinity of a s-wave superconductor
title_sort yu-shiba-rusinov bound states induced by a spin flipper in the vicinity of a s-wave superconductor
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6085302/
https://www.ncbi.nlm.nih.gov/pubmed/30093693
http://dx.doi.org/10.1038/s41598-018-30346-4
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