title: On-Surface Engineering of a Magnetic Organometallic Nanowire.
abstract: The manipulation of the molecular spin state by atom doping is an attractive strategy to confer desirable magnetic properties to molecules. Here, we present the formation of novel magnetic metallocenes by following this approach. In particular, two different on-surface procedures to build isolated and layer-integrated Co-ferrocene (CoFc) molecules on a metallic substrate via atomic manipulation and atom deposition are shown. The structure as well as the electronic properties of the so-formed molecule are investigated combining scanning tunneling microscopy and spectroscopy with density functional theory calculations. It is found that unlike single ferrocene a CoFc molecule possesses a magnetic moment as revealed by the Kondo effect. These results correspond to the first controlled procedure toward the development of tailored metallocene-based nanowires with a desired chemical composition, which are predicted to be promising materials for molecular spintronics.
authors.affiliation: IPCMS, CNRS UMR 7504, Université de Strasbourg , 67034 Strasbourg, France.
authors.forename: Maider
authors.initials: M
authors.lastname: Ormaza
authors.affiliation: ICN2 - Institut Català de Nanociéncia i Nanotecnologia , Campus UAB, 08193 Bellaterra (Barcelona), Spain.
authors.forename: Roberto
authors.initials: R
authors.lastname: Robles
authors.affiliation: IPCMS, CNRS UMR 7504, Université de Strasbourg , 67034 Strasbourg, France.
authors.forename: Nicolas
authors.initials: N
authors.lastname: Bachellier
authors.affiliation: ICN2 - Institut Català de Nanociéncia i Nanotecnologia , Campus UAB, 08193 Bellaterra (Barcelona), Spain.|Instituto de Física de Rosario, Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET) and Universidad Nacional de Rosario , Avenida Pellegrini 250 (2000) Rosario, Argentina.
authors.forename: Paula
authors.initials: P
authors.lastname: Abufager
authors.affiliation: ICN2 - Institut Català de Nanociéncia i Nanotecnologia , Campus UAB, 08193 Bellaterra (Barcelona), Spain.|Centro de Física de Materiales CFM/MPC (CSIC-UPV/EHU) , Paseo Manuel de Lardizabal 5, 20018 Donostia-San Sebastián, Spain.|Donostia International Physics Center (DIPC) , Paseo Manuel de Lardizabal 4, 20018 Donostia-San Sebastián, Spain.
authors.forename: Nicolás
authors.initials: N
authors.lastname: Lorente
authors.affiliation: IPCMS, CNRS UMR 7504, Université de Strasbourg , 67034 Strasbourg, France.
authors.forename: Laurent
authors.initials: L
authors.lastname: Limot
keywords: Ferrocene; Kondo effect; density functional theory; scanning tunneling microscopy/spectroscopy; spin doping; tip-assisted manipulation