Antiferromagnetic coupling of TbPc2 molecules to ultrathin Ni and Co films

The magnetic and electronic properties of single-molecule magnets are studied by X-ray absorption spectroscopy and X-ray magnetic circular dichroism. We study the magnetic coupling of ultrathin Co and Ni films that are epitaxially grown onto a Cu(100) substrate, to an in situ deposited submonolayer...

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Main Authors: David Klar, Svetlana Klyatskaya, Andrea Candini, Bernhard Krumme, Kurt Kummer, Philippe Ohresser, Valdis Corradini, Valentina de Renzi, Roberto Biagi, Loic Joly, Jean-Paul Kappler, Umberto del Pennino, Marco Affronte, Heiko Wende, Mario Ruben
Format: Article
Language:English
Published: Beilstein-Institut 2013-05-01
Series:Beilstein Journal of Nanotechnology
Subjects:
Online Access:https://doi.org/10.3762/bjnano.4.36
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author David Klar
Svetlana Klyatskaya
Andrea Candini
Bernhard Krumme
Kurt Kummer
Philippe Ohresser
Valdis Corradini
Valentina de Renzi
Roberto Biagi
Loic Joly
Jean-Paul Kappler
Umberto del Pennino
Marco Affronte
Heiko Wende
Mario Ruben
author_facet David Klar
Svetlana Klyatskaya
Andrea Candini
Bernhard Krumme
Kurt Kummer
Philippe Ohresser
Valdis Corradini
Valentina de Renzi
Roberto Biagi
Loic Joly
Jean-Paul Kappler
Umberto del Pennino
Marco Affronte
Heiko Wende
Mario Ruben
author_sort David Klar
collection DOAJ
description The magnetic and electronic properties of single-molecule magnets are studied by X-ray absorption spectroscopy and X-ray magnetic circular dichroism. We study the magnetic coupling of ultrathin Co and Ni films that are epitaxially grown onto a Cu(100) substrate, to an in situ deposited submonolayer of TbPc2 molecules. Because of the element specificity of the X-ray absorption spectroscopy we are able to individually determine the field dependence of the magnetization of the Tb ions and the Ni or Co film. On both substrates the TbPc2 molecules couple antiferromagnetically to the ferromagnetic films, which is possibly due to a superexchange interaction via the phthalocyanine ligand that contacts the magnetic surface.
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spelling doaj.art-41c3379ef01743d9806cf9d0b51fc3492022-12-21T19:55:07ZengBeilstein-InstitutBeilstein Journal of Nanotechnology2190-42862013-05-014132032410.3762/bjnano.4.362190-4286-4-36Antiferromagnetic coupling of TbPc2 molecules to ultrathin Ni and Co filmsDavid Klar0Svetlana Klyatskaya1Andrea Candini2Bernhard Krumme3Kurt Kummer4Philippe Ohresser5Valdis Corradini6Valentina de Renzi7Roberto Biagi8Loic Joly9Jean-Paul Kappler10Umberto del Pennino11Marco Affronte12Heiko Wende13Mario Ruben14Faculty of Physics and CENIDE, University Duisburg-Essen, Lotharstraße 1, 47048 Duisburg, GermanyInstitute of Nanotechnology, Karlsruhe Institute of Technology (KIT), 76344 Eggenstein-Leopoldshafen, GermanyCentro S3, Istituto Nanoscienze - CNR, via Campi 213/a, I-41125 Modena, ItalyFaculty of Physics and CENIDE, University Duisburg-Essen, Lotharstraße 1, 47048 Duisburg, GermanyESRF, 6 rue Jules Horowitz, BP 220, F-38043 Grenoble Cedex, FranceSynchrotron SOLEIL, L′Orme des Merisiers, Saint-Aubin - BP 48, 91192 Gif-sur-Yvette, FranceCentro S3, Istituto Nanoscienze - CNR, via Campi 213/a, I-41125 Modena, ItalyCentro S3, Istituto Nanoscienze - CNR, via Campi 213/a, I-41125 Modena, ItalyCentro S3, Istituto Nanoscienze - CNR, via Campi 213/a, I-41125 Modena, ItalyUniversite de Strasbourg, Institut de Physique et de Chimie des Materiaux de Strasbourg, CNRS UMP 7504, 23 Rue du Loess, 67034 Strasbourg Cedex 2, FranceUniversite de Strasbourg, Institut de Physique et de Chimie des Materiaux de Strasbourg, CNRS UMP 7504, 23 Rue du Loess, 67034 Strasbourg Cedex 2, FranceCentro S3, Istituto Nanoscienze - CNR, via Campi 213/a, I-41125 Modena, ItalyCentro S3, Istituto Nanoscienze - CNR, via Campi 213/a, I-41125 Modena, ItalyFaculty of Physics and CENIDE, University Duisburg-Essen, Lotharstraße 1, 47048 Duisburg, GermanyInstitute of Nanotechnology, Karlsruhe Institute of Technology (KIT), 76344 Eggenstein-Leopoldshafen, GermanyThe magnetic and electronic properties of single-molecule magnets are studied by X-ray absorption spectroscopy and X-ray magnetic circular dichroism. We study the magnetic coupling of ultrathin Co and Ni films that are epitaxially grown onto a Cu(100) substrate, to an in situ deposited submonolayer of TbPc2 molecules. Because of the element specificity of the X-ray absorption spectroscopy we are able to individually determine the field dependence of the magnetization of the Tb ions and the Ni or Co film. On both substrates the TbPc2 molecules couple antiferromagnetically to the ferromagnetic films, which is possibly due to a superexchange interaction via the phthalocyanine ligand that contacts the magnetic surface.https://doi.org/10.3762/bjnano.4.36magnetic anisotropymagnetic couplingsingle molecule magnetsX-ray absorption spectroscopy
spellingShingle David Klar
Svetlana Klyatskaya
Andrea Candini
Bernhard Krumme
Kurt Kummer
Philippe Ohresser
Valdis Corradini
Valentina de Renzi
Roberto Biagi
Loic Joly
Jean-Paul Kappler
Umberto del Pennino
Marco Affronte
Heiko Wende
Mario Ruben
Antiferromagnetic coupling of TbPc2 molecules to ultrathin Ni and Co films
Beilstein Journal of Nanotechnology
magnetic anisotropy
magnetic coupling
single molecule magnets
X-ray absorption spectroscopy
title Antiferromagnetic coupling of TbPc2 molecules to ultrathin Ni and Co films
title_full Antiferromagnetic coupling of TbPc2 molecules to ultrathin Ni and Co films
title_fullStr Antiferromagnetic coupling of TbPc2 molecules to ultrathin Ni and Co films
title_full_unstemmed Antiferromagnetic coupling of TbPc2 molecules to ultrathin Ni and Co films
title_short Antiferromagnetic coupling of TbPc2 molecules to ultrathin Ni and Co films
title_sort antiferromagnetic coupling of tbpc2 molecules to ultrathin ni and co films
topic magnetic anisotropy
magnetic coupling
single molecule magnets
X-ray absorption spectroscopy
url https://doi.org/10.3762/bjnano.4.36
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