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Kondo-like zero-bias conductance anomaly in a three-dimensional topological insulator nanowire

Zero-bias anomalies in topological nanowires have recently captured significant attention, as they are possible signatures of Majorana modes. Yet there are many other possible origins of zero-bias peaks in nanowires—for example, weak localization, Andreev bound states, or the Kondo effect. Here, we...

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Autores principales: Cho, Sungjae, Zhong, Ruidan, Schneeloch, John A., Gu, Genda, Mason, Nadya
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group 2016
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4766402/
https://www.ncbi.nlm.nih.gov/pubmed/26911258
http://dx.doi.org/10.1038/srep21767
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author Cho, Sungjae
Zhong, Ruidan
Schneeloch, John A.
Gu, Genda
Mason, Nadya
author_facet Cho, Sungjae
Zhong, Ruidan
Schneeloch, John A.
Gu, Genda
Mason, Nadya
author_sort Cho, Sungjae
collection PubMed
description Zero-bias anomalies in topological nanowires have recently captured significant attention, as they are possible signatures of Majorana modes. Yet there are many other possible origins of zero-bias peaks in nanowires—for example, weak localization, Andreev bound states, or the Kondo effect. Here, we discuss observations of differential-conductance peaks at zero-bias voltage in non-superconducting electronic transport through a 3D topological insulator (Bi(1.33)Sb(0.67))Se(3) nanowire. The zero-bias conductance peaks show logarithmic temperature dependence and often linear splitting with magnetic fields, both of which are signatures of the Kondo effect in quantum dots. We characterize the zero-bias peaks and discuss their origin.
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spelling pubmed-47664022016-03-02 Kondo-like zero-bias conductance anomaly in a three-dimensional topological insulator nanowire Cho, Sungjae Zhong, Ruidan Schneeloch, John A. Gu, Genda Mason, Nadya Sci Rep Article Zero-bias anomalies in topological nanowires have recently captured significant attention, as they are possible signatures of Majorana modes. Yet there are many other possible origins of zero-bias peaks in nanowires—for example, weak localization, Andreev bound states, or the Kondo effect. Here, we discuss observations of differential-conductance peaks at zero-bias voltage in non-superconducting electronic transport through a 3D topological insulator (Bi(1.33)Sb(0.67))Se(3) nanowire. The zero-bias conductance peaks show logarithmic temperature dependence and often linear splitting with magnetic fields, both of which are signatures of the Kondo effect in quantum dots. We characterize the zero-bias peaks and discuss their origin. Nature Publishing Group 2016-02-25 /pmc/articles/PMC4766402/ /pubmed/26911258 http://dx.doi.org/10.1038/srep21767 Text en Copyright © 2016, Macmillan Publishers Limited http://creativecommons.org/licenses/by/4.0/ This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/
spellingShingle Article
Cho, Sungjae
Zhong, Ruidan
Schneeloch, John A.
Gu, Genda
Mason, Nadya
Kondo-like zero-bias conductance anomaly in a three-dimensional topological insulator nanowire
title Kondo-like zero-bias conductance anomaly in a three-dimensional topological insulator nanowire
title_full Kondo-like zero-bias conductance anomaly in a three-dimensional topological insulator nanowire
title_fullStr Kondo-like zero-bias conductance anomaly in a three-dimensional topological insulator nanowire
title_full_unstemmed Kondo-like zero-bias conductance anomaly in a three-dimensional topological insulator nanowire
title_short Kondo-like zero-bias conductance anomaly in a three-dimensional topological insulator nanowire
title_sort kondo-like zero-bias conductance anomaly in a three-dimensional topological insulator nanowire
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4766402/
https://www.ncbi.nlm.nih.gov/pubmed/26911258
http://dx.doi.org/10.1038/srep21767
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