Magnetic interplay between two different lanthanides in a tris-phthalocyaninato complex: a viable synthetic route and detailed investigation in the bulk and on the surface

Autor: Andrea Candini, Filippo Troiani, Umberto del Pennino, Valdis Corradini, Olaf Fuhr, Yanhua Lan, Mario Ruben, Wolfgang Wernsdorfer, David Klar, Marco Affronte, Alberto Lodi Rizzini, Loïc Joly, Heiko Wende, Svetlana Klyatskaya
Přispěvatelé: Laboratoire de Mathématiques d'Orsay (LMO), Université Paris-Sud - Paris 11 (UP11)-Centre National de la Recherche Scientifique (CNRS), Karlsruhe Inst Technol, Inst Nanotechnol, D-76344 Eggenstein Leopoldshafen, Germany, Institut de Physique et Chimie des Matériaux de Strasbourg (IPCMS), Université de Strasbourg (UNISTRA)-Matériaux et nanosciences d'Alsace (FMNGE), Institut de Chimie du CNRS (INC)-Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)-Institut de Chimie du CNRS (INC)-Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS)-Réseau nanophotonique et optique, Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA), Institut für Nanotechnologie, Forschungszentrum Karlsruhe, Circuits électroniques quantiques Alpes (QuantECA), Institut Néel (NEEL), Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS)-Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS), Centro S3, Istituto Nanoscienze [Modena] (CNR NANO), Dipartimento di Scienze Fisiche, Informatiche e Matematiche [Modena], Università degli Studi di Modena e Reggio Emilia (UNIMORE), Center for Nanointegration Duisburg-Essen (CeNIDE), Universität Duisburg-Essen [Essen], Univ Duisburg Essen, Fac Phys, D-47048 Duisburg, Germany
Jazyk: angličtina
Rok vydání: 2015
Předmět:
Zdroj: Journal of Materials Chemistry C
Journal of Materials Chemistry C, Royal Society of Chemistry, 2015, 3 (38), pp.9794-9801. ⟨10.1039/c5tc02011e⟩
Journal of materials chemistry / C, 3 (38), 9794-9801
JOURNAL OF MATERIALS CHEMISTRY C 3 (2015): 9794–9801. doi:10.1039/c5tc02011e
info:cnr-pdr/source/autori:Lan Y.; Klyatskaya S.; Ruben M.; Fuhr O.; Wernsdorfer W.; Candini A.; Corradini V.; Lodi Rizzini A.; Del Pennino U.; Troiani F.; Joly L.; Klar D.; Wende H.; Affronte M./titolo:Magnetic interplay between two different lanthanides in a tris-phthalocyaninato complex: a viable synthetic route and detailed investigation in the bulk and on the surface/doi:10.1039%2Fc5tc02011e/rivista:JOURNAL OF MATERIALS CHEMISTRY C/anno:2015/pagina_da:9794/pagina_a:9801/intervallo_pagine:9794–9801/volume:3
ISSN: 2050-7526
2050-7534
Popis: Future applications of molecular units in quantum information technologies require a fine control at the single molecule level. This includes the choice of each functional element, the intramolecular interaction and the robustness of molecules when dispersed on a substrate. Keeping these goals in mind, we designed and synthesized a heterometallic phthalocyaninato-complex including two different lanthanides in each moiety, namely [PcDyPcTbPc∗] (Pc being phthalocyanines; and Pc∗ being 2,3,9,10,16,17,23,24-octahexyl-substituted phthalocyanines). Full magnetic characterization was performed down to the mK temperature range on bulk microcrystals by means of AC susceptibility, DC magnetization (including microSQUID) and specific heat measurements. A weak, yet sizeable, interaction between the two lanthanides is clearly detected by different techniques, altering the magnetic behavior of the single lanthanide as observed in the parent [LnPc2] complexes. Isolated [PcDyPcTbPc∗] molecules dispersed on HOPG and the Au surface by liquid phase deposition are proven to maintain their main chemical and magnetic features by combined XPS, XAS and XMCD analysis and to lie with one Pc ligand flat to the surface. Opening of a small but sizable hysteresis loop at 1.8 K is directly observed on both Tb and Dy sites proving the retention of magnetization at the single molecule level. This journal is © The Royal Society of Chemistry.
Databáze: OpenAIRE