title: Exchange Coupling of Spin-Crossover Molecules to Ferromagnetic Co Islands.
abstract: The properties of Fe(1,10-phenanthroline)2(NCS)2 (Fe-phen) molecules deposited on Co/Cu(111) are studied with scanning tunneling microscopy (STM) operated in ultrahigh vacuum at low temperature (4 K) and ab initio calculations. Both the experimental and theoretical results are used to identify the high-spin (HS) state of Fe-phen. Additionally, the calculations reveal a strong spin-polarization of the density of states (DOS) and is validated experimentally using the spin sensitivity of spin-polarized STM. Finally, it is shown that the magnetic moment of the Fe-ion within HS Fe-phen is strongly magnetically coupled to the underlying magnetic Co through the NCS groups. These findings enable promising spintronic perspectives.
authors.affiliation: Institut de Physique et de Chimie des Matériaux de Strasbourg (IPCMS), Université de Strasbourg, CNRS UMR 7504 , 23 rue du Loess, BP 43, F-67034 Strasbourg Cedex 2, France.
authors.forename: Saber
authors.initials: S
authors.lastname: Gueddida
authors.affiliation: Institut de Physique et de Chimie des Matériaux de Strasbourg (IPCMS), Université de Strasbourg, CNRS UMR 7504 , 23 rue du Loess, BP 43, F-67034 Strasbourg Cedex 2, France.|Physikalisches Institut, Karlsruhe Institute of Technology , Wolfgang-Gaede-Strasse 1, 76131 Karlsruhe, Germany.
authors.forename: Manuel
authors.initials: M
authors.lastname: Gruber
authors.affiliation: Physikalisches Institut, Karlsruhe Institute of Technology , Wolfgang-Gaede-Strasse 1, 76131 Karlsruhe, Germany.
authors.forename: Toshio
authors.initials: T
authors.lastname: Miyamachi
authors.affiliation: Institut de Physique et de Chimie des Matériaux de Strasbourg (IPCMS), Université de Strasbourg, CNRS UMR 7504 , 23 rue du Loess, BP 43, F-67034 Strasbourg Cedex 2, France.
authors.forename: Eric
authors.initials: E
authors.lastname: Beaurepaire
authors.affiliation: Physikalisches Institut, Karlsruhe Institute of Technology , Wolfgang-Gaede-Strasse 1, 76131 Karlsruhe, Germany.|Institute of Nanotechnology, Karlsruhe Institute of Technology , 76021 Karlsruhe, Germany.
authors.forename: Wulf
authors.initials: W
authors.lastname: Wulfhekel
authors.affiliation: Physikalisches Institut, Karlsruhe Institute of Technology , Wolfgang-Gaede-Strasse 1, 76131 Karlsruhe, Germany.
authors.forename: Mebarek
authors.initials: M
authors.lastname: Alouani