Room-Temperature Spin-Dependent Transport in Metalloporphyrin-Based Supramolecular Wires.
density functional calculations
magnetoresistance
metalloporphyrins
single-molecule junctions
spinterface
Journal
Angewandte Chemie (International ed. in English)
ISSN: 1521-3773
Titre abrégé: Angew Chem Int Ed Engl
Pays: Germany
ID NLM: 0370543
Informations de publication
Date de publication:
01 Dec 2021
01 Dec 2021
Historique:
revised:
23
09
2021
received:
05
08
2021
pubmed:
3
11
2021
medline:
3
11
2021
entrez:
2
11
2021
Statut:
ppublish
Résumé
Here we present room-temperature spin-dependent charge transport measurements in single-molecule junctions made of metalloporphyrin-based supramolecular assemblies. They display large conductance switching for magnetoresistance in a single-molecule junction. The magnetoresistance depends acutely on the probed electron pathway through the supramolecular wire: those involving the metal center showed marked magnetoresistance effects as opposed to those exclusively involving the porphyrin ring which present nearly complete absence of spin-dependent charge transport. The molecular junction magnetoresistance is highly anisotropic, being observable when the magnetization of the ferromagnetic junction electrode is oriented along the main molecular junction axis, and almost suppressed when it is perpendicular. The key ingredients for the above effect to manifest are the electronic structure of the paramagnetic metalloporphyrin, and the spinterface created at the molecule-electrode contact.
Identifiants
pubmed: 34726815
doi: 10.1002/anie.202110515
pmc: PMC9298358
doi:
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
25958-25965Subventions
Organisme : Ministerio de Ciencia, Innovación y Universidades
ID : PGC2018-093863-B-C21
Organisme : Ministerio de Ciencia, Innovación y Universidades
ID : PID2019-108794GB-100
Organisme : Ministerio de Ciencia, Innovación y Universidades
ID : MDM-2017-0767
Organisme : Ministerio de Ciencia, Innovación y Universidades
ID : CEX2019-000917-S
Organisme : Ministerio de Ciencia, Innovación y Universidades
ID : RYC-2017-22910
Organisme : H2020 European Research Council
ID : grant 772391
Organisme : H2020 European Research Council
ID : grant 724981
Organisme : H2020 Marie Skłodowska-Curie Actions
ID : TECh-MoDE, 844668
Organisme : Agència de Gestió d'Ajuts Universitaris i de Recerca
ID : SGR2017-1289
Organisme : Agència de Gestió d'Ajuts Universitaris i de Recerca
ID : 2017SGR1277
Informations de copyright
© 2021 The Authors. Angewandte Chemie International Edition published by Wiley-VCH GmbH.
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