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Engineering the magnetic coupling and anisotropy at the molecule–magnetic surface interface in molecular spintronic devices

A challenge in molecular spintronics is to control the magnetic coupling between magnetic molecules and magnetic electrodes to build efficient devices. Here we show that the nature of the magnetic ion of anchored metal complexes highly impacts the exchange coupling of the molecules with magnetic sub...

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Autores principales: Campbell, Victoria E., Tonelli, Monica, Cimatti, Irene, Moussy, Jean-Baptiste, Tortech, Ludovic, Dappe, Yannick J., Rivière, Eric, Guillot, Régis, Delprat, Sophie, Mattana, Richard, Seneor, Pierre, Ohresser, Philippe, Choueikani, Fadi, Otero, Edwige, Koprowiak, Florian, Chilkuri, Vijay Gopal, Suaud, Nicolas, Guihéry, Nathalie, Galtayries, Anouk, Miserque, Frederic, Arrio, Marie-Anne, Sainctavit, Philippe, Mallah, Talal
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group 2016
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5476799/
https://www.ncbi.nlm.nih.gov/pubmed/27929089
http://dx.doi.org/10.1038/ncomms13646
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author Campbell, Victoria E.
Tonelli, Monica
Cimatti, Irene
Moussy, Jean-Baptiste
Tortech, Ludovic
Dappe, Yannick J.
Rivière, Eric
Guillot, Régis
Delprat, Sophie
Mattana, Richard
Seneor, Pierre
Ohresser, Philippe
Choueikani, Fadi
Otero, Edwige
Koprowiak, Florian
Chilkuri, Vijay Gopal
Suaud, Nicolas
Guihéry, Nathalie
Galtayries, Anouk
Miserque, Frederic
Arrio, Marie-Anne
Sainctavit, Philippe
Mallah, Talal
author_facet Campbell, Victoria E.
Tonelli, Monica
Cimatti, Irene
Moussy, Jean-Baptiste
Tortech, Ludovic
Dappe, Yannick J.
Rivière, Eric
Guillot, Régis
Delprat, Sophie
Mattana, Richard
Seneor, Pierre
Ohresser, Philippe
Choueikani, Fadi
Otero, Edwige
Koprowiak, Florian
Chilkuri, Vijay Gopal
Suaud, Nicolas
Guihéry, Nathalie
Galtayries, Anouk
Miserque, Frederic
Arrio, Marie-Anne
Sainctavit, Philippe
Mallah, Talal
author_sort Campbell, Victoria E.
collection PubMed
description A challenge in molecular spintronics is to control the magnetic coupling between magnetic molecules and magnetic electrodes to build efficient devices. Here we show that the nature of the magnetic ion of anchored metal complexes highly impacts the exchange coupling of the molecules with magnetic substrates. Surface anchoring alters the magnetic anisotropy of the cobalt(II)-containing complex (Co(Pyipa)(2)), and results in blocking of its magnetization due to the presence of a magnetic hysteresis loop. In contrast, no hysteresis loop is observed in the isostructural nickel(II)-containing complex (Ni(Pyipa)(2)). Through XMCD experiments and theoretical calculations we find that Co(Pyipa)(2) is strongly ferromagnetically coupled to the surface, while Ni(Pyipa)(2) is either not coupled or weakly antiferromagnetically coupled to the substrate. These results highlight the importance of the synergistic effect that the electronic structure of a metal ion and the organic ligands has on the exchange interaction and anisotropy occurring at the molecule–electrode interface.
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spelling pubmed-54767992017-07-03 Engineering the magnetic coupling and anisotropy at the molecule–magnetic surface interface in molecular spintronic devices Campbell, Victoria E. Tonelli, Monica Cimatti, Irene Moussy, Jean-Baptiste Tortech, Ludovic Dappe, Yannick J. Rivière, Eric Guillot, Régis Delprat, Sophie Mattana, Richard Seneor, Pierre Ohresser, Philippe Choueikani, Fadi Otero, Edwige Koprowiak, Florian Chilkuri, Vijay Gopal Suaud, Nicolas Guihéry, Nathalie Galtayries, Anouk Miserque, Frederic Arrio, Marie-Anne Sainctavit, Philippe Mallah, Talal Nat Commun Article A challenge in molecular spintronics is to control the magnetic coupling between magnetic molecules and magnetic electrodes to build efficient devices. Here we show that the nature of the magnetic ion of anchored metal complexes highly impacts the exchange coupling of the molecules with magnetic substrates. Surface anchoring alters the magnetic anisotropy of the cobalt(II)-containing complex (Co(Pyipa)(2)), and results in blocking of its magnetization due to the presence of a magnetic hysteresis loop. In contrast, no hysteresis loop is observed in the isostructural nickel(II)-containing complex (Ni(Pyipa)(2)). Through XMCD experiments and theoretical calculations we find that Co(Pyipa)(2) is strongly ferromagnetically coupled to the surface, while Ni(Pyipa)(2) is either not coupled or weakly antiferromagnetically coupled to the substrate. These results highlight the importance of the synergistic effect that the electronic structure of a metal ion and the organic ligands has on the exchange interaction and anisotropy occurring at the molecule–electrode interface. Nature Publishing Group 2016-12-08 /pmc/articles/PMC5476799/ /pubmed/27929089 http://dx.doi.org/10.1038/ncomms13646 Text en Copyright © 2016, The Author(s) 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
Campbell, Victoria E.
Tonelli, Monica
Cimatti, Irene
Moussy, Jean-Baptiste
Tortech, Ludovic
Dappe, Yannick J.
Rivière, Eric
Guillot, Régis
Delprat, Sophie
Mattana, Richard
Seneor, Pierre
Ohresser, Philippe
Choueikani, Fadi
Otero, Edwige
Koprowiak, Florian
Chilkuri, Vijay Gopal
Suaud, Nicolas
Guihéry, Nathalie
Galtayries, Anouk
Miserque, Frederic
Arrio, Marie-Anne
Sainctavit, Philippe
Mallah, Talal
Engineering the magnetic coupling and anisotropy at the molecule–magnetic surface interface in molecular spintronic devices
title Engineering the magnetic coupling and anisotropy at the molecule–magnetic surface interface in molecular spintronic devices
title_full Engineering the magnetic coupling and anisotropy at the molecule–magnetic surface interface in molecular spintronic devices
title_fullStr Engineering the magnetic coupling and anisotropy at the molecule–magnetic surface interface in molecular spintronic devices
title_full_unstemmed Engineering the magnetic coupling and anisotropy at the molecule–magnetic surface interface in molecular spintronic devices
title_short Engineering the magnetic coupling and anisotropy at the molecule–magnetic surface interface in molecular spintronic devices
title_sort engineering the magnetic coupling and anisotropy at the molecule–magnetic surface interface in molecular spintronic devices
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5476799/
https://www.ncbi.nlm.nih.gov/pubmed/27929089
http://dx.doi.org/10.1038/ncomms13646
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