Spin-dependent zero-bias peak in a hybrid nanowire-quantum dot system: Distinguishing isolated Majorana fermions from Andreev bound states
Autor(a) principal: | |
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Data de Publicação: | 2019 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1103/PhysRevB.99.155159 http://hdl.handle.net/11449/228680 |
Resumo: | A hybrid system composed by a semiconducting nanowire with proximity-induced superconductivity and a quantum dot at the end working as a spectrometer was recently used to quantify the so-called degree of Majorana nonlocality [M.-T. Deng Phys. Rev. B 98, 085125 (2018)2469-995010.1103/PhysRevB.98.085125]. Here we demonstrate that the spin-resolved density of states of the dot responsible for the zero-bias conductance peak strongly depends on the separation between the Majorana bound states and their relative couplings with the dot and investigate how the charging energy affects the spectrum of the system in the distinct scenarios of Majorana nonlocality (topological quality). Our findings suggest that the spin-resolved spectroscopy of the local density of states of the dot can be used as a powerful tool for discriminating between different scenarios of the emergence of the zero-bias conductance peak. |
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Spin-dependent zero-bias peak in a hybrid nanowire-quantum dot system: Distinguishing isolated Majorana fermions from Andreev bound statesA hybrid system composed by a semiconducting nanowire with proximity-induced superconductivity and a quantum dot at the end working as a spectrometer was recently used to quantify the so-called degree of Majorana nonlocality [M.-T. Deng Phys. Rev. B 98, 085125 (2018)2469-995010.1103/PhysRevB.98.085125]. Here we demonstrate that the spin-resolved density of states of the dot responsible for the zero-bias conductance peak strongly depends on the separation between the Majorana bound states and their relative couplings with the dot and investigate how the charging energy affects the spectrum of the system in the distinct scenarios of Majorana nonlocality (topological quality). Our findings suggest that the spin-resolved spectroscopy of the local density of states of the dot can be used as a powerful tool for discriminating between different scenarios of the emergence of the zero-bias conductance peak.Departamento de Física e Química Faculdade de Engenharia Universidade Estadual PaulistaDepartamento de Física Instituto de Geociências e Ciências Exatas Universidade Estadual PaulistaInstituto de Física Universidade Federal FluminenseScience Institute University of Iceland, Dunhagi-3International Laboratory of Light-matter Coupling in Nanostructures ITMO UniversityDepartamento de Física e Química Faculdade de Engenharia Universidade Estadual PaulistaDepartamento de Física Instituto de Geociências e Ciências Exatas Universidade Estadual PaulistaUniversidade Estadual Paulista (UNESP)Universidade Federal Fluminense (UFF)University of IcelandITMO UniversityRicco, L. S. [UNESP]De Souza, M. [UNESP]Figueira, M. S.Shelykh, I. A.Seridonio, A. C. [UNESP]2022-04-29T08:28:00Z2022-04-29T08:28:00Z2019-04-30info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://dx.doi.org/10.1103/PhysRevB.99.155159Physical Review B, v. 99, n. 15, 2019.2469-99692469-9950http://hdl.handle.net/11449/22868010.1103/PhysRevB.99.1551592-s2.0-85065492724Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengPhysical Review Binfo:eu-repo/semantics/openAccess2022-04-29T08:28:00Zoai:repositorio.unesp.br:11449/228680Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T15:29:11.349319Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Spin-dependent zero-bias peak in a hybrid nanowire-quantum dot system: Distinguishing isolated Majorana fermions from Andreev bound states |
title |
Spin-dependent zero-bias peak in a hybrid nanowire-quantum dot system: Distinguishing isolated Majorana fermions from Andreev bound states |
spellingShingle |
Spin-dependent zero-bias peak in a hybrid nanowire-quantum dot system: Distinguishing isolated Majorana fermions from Andreev bound states Ricco, L. S. [UNESP] |
title_short |
Spin-dependent zero-bias peak in a hybrid nanowire-quantum dot system: Distinguishing isolated Majorana fermions from Andreev bound states |
title_full |
Spin-dependent zero-bias peak in a hybrid nanowire-quantum dot system: Distinguishing isolated Majorana fermions from Andreev bound states |
title_fullStr |
Spin-dependent zero-bias peak in a hybrid nanowire-quantum dot system: Distinguishing isolated Majorana fermions from Andreev bound states |
title_full_unstemmed |
Spin-dependent zero-bias peak in a hybrid nanowire-quantum dot system: Distinguishing isolated Majorana fermions from Andreev bound states |
title_sort |
Spin-dependent zero-bias peak in a hybrid nanowire-quantum dot system: Distinguishing isolated Majorana fermions from Andreev bound states |
author |
Ricco, L. S. [UNESP] |
author_facet |
Ricco, L. S. [UNESP] De Souza, M. [UNESP] Figueira, M. S. Shelykh, I. A. Seridonio, A. C. [UNESP] |
author_role |
author |
author2 |
De Souza, M. [UNESP] Figueira, M. S. Shelykh, I. A. Seridonio, A. C. [UNESP] |
author2_role |
author author author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (UNESP) Universidade Federal Fluminense (UFF) University of Iceland ITMO University |
dc.contributor.author.fl_str_mv |
Ricco, L. S. [UNESP] De Souza, M. [UNESP] Figueira, M. S. Shelykh, I. A. Seridonio, A. C. [UNESP] |
description |
A hybrid system composed by a semiconducting nanowire with proximity-induced superconductivity and a quantum dot at the end working as a spectrometer was recently used to quantify the so-called degree of Majorana nonlocality [M.-T. Deng Phys. Rev. B 98, 085125 (2018)2469-995010.1103/PhysRevB.98.085125]. Here we demonstrate that the spin-resolved density of states of the dot responsible for the zero-bias conductance peak strongly depends on the separation between the Majorana bound states and their relative couplings with the dot and investigate how the charging energy affects the spectrum of the system in the distinct scenarios of Majorana nonlocality (topological quality). Our findings suggest that the spin-resolved spectroscopy of the local density of states of the dot can be used as a powerful tool for discriminating between different scenarios of the emergence of the zero-bias conductance peak. |
publishDate |
2019 |
dc.date.none.fl_str_mv |
2019-04-30 2022-04-29T08:28:00Z 2022-04-29T08:28:00Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://dx.doi.org/10.1103/PhysRevB.99.155159 Physical Review B, v. 99, n. 15, 2019. 2469-9969 2469-9950 http://hdl.handle.net/11449/228680 10.1103/PhysRevB.99.155159 2-s2.0-85065492724 |
url |
http://dx.doi.org/10.1103/PhysRevB.99.155159 http://hdl.handle.net/11449/228680 |
identifier_str_mv |
Physical Review B, v. 99, n. 15, 2019. 2469-9969 2469-9950 10.1103/PhysRevB.99.155159 2-s2.0-85065492724 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Physical Review B |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.source.none.fl_str_mv |
Scopus reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
|
_version_ |
1808128519133200384 |