Spin dependent transmission of nickelocene-Cu contacts probed with shot noise

Autores
Mohr, Michael; Gruber, Manuel; Weismann, Alexander; Jacob, David; Abufager, Paula Natalia; Lorente, Nicolás; Berndt, Richard
Año de publicación
2020
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The current I through nickelocene molecules and its noise are measured with a low-temperature scanning tunneling microscope on a Cu(100) substrate. Density functional theory calculations and many-body modeling are used to analyze the data. During contact formation, two types of current evolution are observed, namely an abrupt jump to contact and a smooth transition. These data along with conductance spectra (dI/dV) recorded deep in the contact range are interpreted in terms of a transition from a spin-1 to a spin-12 state that is Kondo-screened. Many-body calculations show that the smooth transition is also consistent with a renormalization of spin excitations of a spin-1 molecule by Kondo exchange coupling. The shot noise is significantly reduced compared to the Schottky value of 2eI. The noise can be described in the Landauer picture in terms of the spin polarization of the transmission of ≈35% through two degenerate dπ-orbitals of the nickelocene molecule.
Fil: Mohr, Michael. Christian Albrechts Universitat Zu Kiel; Alemania
Fil: Gruber, Manuel. Christian Albrechts Universitat Zu Kiel; Alemania
Fil: Weismann, Alexander. Christian Albrechts Universitat Zu Kiel; Alemania
Fil: Jacob, David. Universidad del País Vasco; España. Basque Foundation for Science; España
Fil: Abufager, Paula Natalia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Rosario. Instituto de Física de Rosario. Universidad Nacional de Rosario. Instituto de Física de Rosario; Argentina
Fil: Lorente, Nicolás. Consejo Superior de Investigaciones Científicas; España. Donostia International Physics Center; España. Universidad del País Vasco; España
Fil: Berndt, Richard. Christian Albrechts Universitat Zu Kiel; Alemania
Materia
spin
transmissiion
nickelocene
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/144139
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/144139
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Spin dependent transmission of nickelocene-Cu contacts probed with shot noiseMohr, MichaelGruber, ManuelWeismann, AlexanderJacob, DavidAbufager, Paula NataliaLorente, NicolásBerndt, Richardspintransmissiionnickelocenehttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1The current I through nickelocene molecules and its noise are measured with a low-temperature scanning tunneling microscope on a Cu(100) substrate. Density functional theory calculations and many-body modeling are used to analyze the data. During contact formation, two types of current evolution are observed, namely an abrupt jump to contact and a smooth transition. These data along with conductance spectra (dI/dV) recorded deep in the contact range are interpreted in terms of a transition from a spin-1 to a spin-12 state that is Kondo-screened. Many-body calculations show that the smooth transition is also consistent with a renormalization of spin excitations of a spin-1 molecule by Kondo exchange coupling. The shot noise is significantly reduced compared to the Schottky value of 2eI. The noise can be described in the Landauer picture in terms of the spin polarization of the transmission of ≈35% through two degenerate dπ-orbitals of the nickelocene molecule.Fil: Mohr, Michael. Christian Albrechts Universitat Zu Kiel; AlemaniaFil: Gruber, Manuel. Christian Albrechts Universitat Zu Kiel; AlemaniaFil: Weismann, Alexander. Christian Albrechts Universitat Zu Kiel; AlemaniaFil: Jacob, David. Universidad del País Vasco; España. Basque Foundation for Science; EspañaFil: Abufager, Paula Natalia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Rosario. Instituto de Física de Rosario. Universidad Nacional de Rosario. Instituto de Física de Rosario; ArgentinaFil: Lorente, Nicolás. Consejo Superior de Investigaciones Científicas; España. Donostia International Physics Center; España. Universidad del País Vasco; EspañaFil: Berndt, Richard. Christian Albrechts Universitat Zu Kiel; AlemaniaAmerican Physical Society2020-02info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/144139Mohr, Michael; Gruber, Manuel; Weismann, Alexander; Jacob, David; Abufager, Paula Natalia; et al.; Spin dependent transmission of nickelocene-Cu contacts probed with shot noise; American Physical Society; Physical Review B: Condensed Matter and Materials Physics; 101; 7; 2-2020; 1-101098-01212469-9969CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1103/PhysRevB.101.075414info:eu-repo/semantics/altIdentifier/url/https://journals.aps.org/prb/abstract/10.1103/PhysRevB.101.075414info:eu-repo/semantics/altIdentifier/url/https://arxiv.org/abs/1910.08289info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-nd/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:37:26Zoai:ri.conicet.gov.ar:11336/144139instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-29 10:37:26.299CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Spin dependent transmission of nickelocene-Cu contacts probed with shot noise
title Spin dependent transmission of nickelocene-Cu contacts probed with shot noise
spellingShingle Spin dependent transmission of nickelocene-Cu contacts probed with shot noise
Mohr, Michael
spin
transmissiion
nickelocene
title_short Spin dependent transmission of nickelocene-Cu contacts probed with shot noise
title_full Spin dependent transmission of nickelocene-Cu contacts probed with shot noise
title_fullStr Spin dependent transmission of nickelocene-Cu contacts probed with shot noise
title_full_unstemmed Spin dependent transmission of nickelocene-Cu contacts probed with shot noise
title_sort Spin dependent transmission of nickelocene-Cu contacts probed with shot noise
dc.creator.none.fl_str_mv Mohr, Michael
Gruber, Manuel
Weismann, Alexander
Jacob, David
Abufager, Paula Natalia
Lorente, Nicolás
Berndt, Richard
author Mohr, Michael
author_facet Mohr, Michael
Gruber, Manuel
Weismann, Alexander
Jacob, David
Abufager, Paula Natalia
Lorente, Nicolás
Berndt, Richard
author_role author
author2 Gruber, Manuel
Weismann, Alexander
Jacob, David
Abufager, Paula Natalia
Lorente, Nicolás
Berndt, Richard
author2_role author
author
author
author
author
author
dc.subject.none.fl_str_mv spin
transmissiion
nickelocene
topic spin
transmissiion
nickelocene
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.3
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv The current I through nickelocene molecules and its noise are measured with a low-temperature scanning tunneling microscope on a Cu(100) substrate. Density functional theory calculations and many-body modeling are used to analyze the data. During contact formation, two types of current evolution are observed, namely an abrupt jump to contact and a smooth transition. These data along with conductance spectra (dI/dV) recorded deep in the contact range are interpreted in terms of a transition from a spin-1 to a spin-12 state that is Kondo-screened. Many-body calculations show that the smooth transition is also consistent with a renormalization of spin excitations of a spin-1 molecule by Kondo exchange coupling. The shot noise is significantly reduced compared to the Schottky value of 2eI. The noise can be described in the Landauer picture in terms of the spin polarization of the transmission of ≈35% through two degenerate dπ-orbitals of the nickelocene molecule.
Fil: Mohr, Michael. Christian Albrechts Universitat Zu Kiel; Alemania
Fil: Gruber, Manuel. Christian Albrechts Universitat Zu Kiel; Alemania
Fil: Weismann, Alexander. Christian Albrechts Universitat Zu Kiel; Alemania
Fil: Jacob, David. Universidad del País Vasco; España. Basque Foundation for Science; España
Fil: Abufager, Paula Natalia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Rosario. Instituto de Física de Rosario. Universidad Nacional de Rosario. Instituto de Física de Rosario; Argentina
Fil: Lorente, Nicolás. Consejo Superior de Investigaciones Científicas; España. Donostia International Physics Center; España. Universidad del País Vasco; España
Fil: Berndt, Richard. Christian Albrechts Universitat Zu Kiel; Alemania
description The current I through nickelocene molecules and its noise are measured with a low-temperature scanning tunneling microscope on a Cu(100) substrate. Density functional theory calculations and many-body modeling are used to analyze the data. During contact formation, two types of current evolution are observed, namely an abrupt jump to contact and a smooth transition. These data along with conductance spectra (dI/dV) recorded deep in the contact range are interpreted in terms of a transition from a spin-1 to a spin-12 state that is Kondo-screened. Many-body calculations show that the smooth transition is also consistent with a renormalization of spin excitations of a spin-1 molecule by Kondo exchange coupling. The shot noise is significantly reduced compared to the Schottky value of 2eI. The noise can be described in the Landauer picture in terms of the spin polarization of the transmission of ≈35% through two degenerate dπ-orbitals of the nickelocene molecule.
publishDate 2020
dc.date.none.fl_str_mv 2020-02
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/144139
Mohr, Michael; Gruber, Manuel; Weismann, Alexander; Jacob, David; Abufager, Paula Natalia; et al.; Spin dependent transmission of nickelocene-Cu contacts probed with shot noise; American Physical Society; Physical Review B: Condensed Matter and Materials Physics; 101; 7; 2-2020; 1-10
1098-0121
2469-9969
CONICET Digital
CONICET
url http://hdl.handle.net/11336/144139
identifier_str_mv Mohr, Michael; Gruber, Manuel; Weismann, Alexander; Jacob, David; Abufager, Paula Natalia; et al.; Spin dependent transmission of nickelocene-Cu contacts probed with shot noise; American Physical Society; Physical Review B: Condensed Matter and Materials Physics; 101; 7; 2-2020; 1-10
1098-0121
2469-9969
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1103/PhysRevB.101.075414
info:eu-repo/semantics/altIdentifier/url/https://journals.aps.org/prb/abstract/10.1103/PhysRevB.101.075414
info:eu-repo/semantics/altIdentifier/url/https://arxiv.org/abs/1910.08289
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
application/pdf
dc.publisher.none.fl_str_mv American Physical Society
publisher.none.fl_str_mv American Physical Society
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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score 13.070432

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