title: Magnetic behaviour of TbPc2 single-molecule magnets chemically grafted on silicon surface.
abstract: Single-molecule magnets (SMMs) are among the most promising molecular systems for the development of novel molecular electronics based on spin transport. Going beyond investigations focused on physisorbed SMMs, in this work the robust grafting of terbium(III) bis(phthalocyaninato) complexes to a silicon surface from a diluted solution is achieved by rational chemical design yielding the formation of a partially oriented monolayer on the conducting substrate. Here by exploiting the surface sensitivity of X-ray circular magnetic dichroism, we evidence an enhancement of the magnetic bistability of this SMM, in contrast to the dramatic reduction of the magnetic hysteresis that characterizes monolayer deposits evaporated on noble and ferromagnetic metals. Photoelectron spectroscopy investigations and density functional theory analysis suggest a non-innocent role played by the silicon substrate, evidencing the potentiality of this approach for robust integration of bistable magnetic molecules in electronic devices.
authors.affiliation: Department of Chemistry 'Ugo Schiff' and INSTM RU, University of Firenze, via della Lastruccia 3-13, Sesto Fiorentino 50019, Italy.
authors.forename: Matteo
authors.initials: M
authors.lastname: Mannini
authors.affiliation: Department of Chemistry, University of Parma and INSTM RU, Parco Area delle Scienze 17/A, Parma 43124, Italy.
authors.forename: Federico
authors.initials: F
authors.lastname: Bertani
authors.affiliation: Department of Chemical Science, University of Catania and INSTM RU, Viale Andrea Doria, 6, Catania 95125, Italy.
authors.forename: Cristina
authors.initials: C
authors.lastname: Tudisco
authors.affiliation: Department of Chemistry 'Ugo Schiff' and INSTM RU, University of Firenze, via della Lastruccia 3-13, Sesto Fiorentino 50019, Italy.
authors.forename: Luigi
authors.initials: L
authors.lastname: Malavolti
authors.affiliation: Department of Chemistry 'Ugo Schiff' and INSTM RU, University of Firenze, via della Lastruccia 3-13, Sesto Fiorentino 50019, Italy.
authors.forename: Lorenzo
authors.initials: L
authors.lastname: Poggini
authors.affiliation: Department of Chemistry, University of Parma and INSTM RU, Parco Area delle Scienze 17/A, Parma 43124, Italy.
authors.forename: Kasjan
authors.initials: K
authors.lastname: Misztal
authors.affiliation: Department of Chemistry, University of Parma and INSTM RU, Parco Area delle Scienze 17/A, Parma 43124, Italy.
authors.forename: Daniela
authors.initials: D
authors.lastname: Menozzi
authors.affiliation: Department of Chemical Science, University of Catania and INSTM RU, Viale Andrea Doria, 6, Catania 95125, Italy.
authors.forename: Alessandro
authors.initials: A
authors.lastname: Motta
authors.affiliation: Synchrotron SOLEIL, L'Orme des Merisiers Saint-Aubin-BP 48, Gif-sur-Yvette 91192, France.
authors.forename: Edwige
authors.initials: E
authors.lastname: Otero
authors.affiliation: Synchrotron SOLEIL, L'Orme des Merisiers Saint-Aubin-BP 48, Gif-sur-Yvette 91192, France.
authors.forename: Philippe
authors.initials: P
authors.lastname: Ohresser
authors.affiliation: 1] Synchrotron SOLEIL, L'Orme des Merisiers Saint-Aubin-BP 48, Gif-sur-Yvette 91192, France [2] IMPMC-CNRS, Université Pierre et Marie Curie, 4 place Jussieu 75252 Paris 05, France.
authors.forename: Philippe
authors.initials: P
authors.lastname: Sainctavit
authors.affiliation: Department of Chemical Science, University of Catania and INSTM RU, Viale Andrea Doria, 6, Catania 95125, Italy.
authors.forename: Guglielmo G
authors.initials: GG
authors.lastname: Condorelli
authors.affiliation: Department of Chemistry, University of Parma and INSTM RU, Parco Area delle Scienze 17/A, Parma 43124, Italy.
authors.forename: Enrico
authors.initials: E
authors.lastname: Dalcanale
authors.affiliation: Department of Chemistry 'Ugo Schiff' and INSTM RU, University of Firenze, via della Lastruccia 3-13, Sesto Fiorentino 50019, Italy.
authors.forename: Roberta
authors.initials: R
authors.lastname: Sessoli
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