title: Impact on interface spin polarization of molecular bonding to metallic surfaces.
abstract: We have studied the repercussion of the molecular adsorption mechanism on the electronic properties of the interface between model nonmagnetic or magnetic metallic surfaces and metallo-organic phthalocyanines molecules (Pcs). Our intertwined x-ray absorption spectroscopy experiments and computational studies reveal that manganese Pc (MnPc) is physisorbed onto a Cu(001) surface and retains the electronic properties of a free molecule. On the other hand, MnPc is chemisorbed onto Co(001), leading to a dominant direct exchange interaction between the Mn molecular site and the Co substrate. By promoting an interfacial spin-polarized conduction state on the molecule, these interactions reveal an important lever to tailor the spintronic properties of hybrid organic-metallic interfaces.
authors.affiliation: IPCMS UMR 7504 CNRS, Université de Strasbourg, 23 rue du Loess, BP 43, 67034 Strasbourg Cedex 2, France.
authors.forename: S
authors.initials: S
authors.lastname: Javaid
authors.forename: M
authors.initials: M
authors.lastname: Bowen
authors.forename: S
authors.initials: S
authors.lastname: Boukari
authors.forename: L
authors.initials: L
authors.lastname: Joly
authors.forename: J-B
authors.initials: JB
authors.lastname: Beaufrand
authors.forename: Xi
authors.initials: X
authors.lastname: Chen
authors.forename: Y J
authors.initials: YJ
authors.lastname: Dappe
authors.forename: F
authors.initials: F
authors.lastname: Scheurer
authors.forename: J-P
authors.initials: JP
authors.lastname: Kappler
authors.forename: J
authors.initials: J
authors.lastname: Arabski
authors.forename: W
authors.initials: W
authors.lastname: Wulfhekel
authors.forename: M
authors.initials: M
authors.lastname: Alouani
authors.forename: E
authors.initials: E
authors.lastname: Beaurepaire