AVS 49th International Symposium
    Organic Films and Devices Wednesday Sessions
       Session OF+EL+SS+SC-WeM

Paper OF+EL+SS+SC-WeM4
Growth of Organic Molecules on Ferromagnetic Substrates for Hybrid Organo-metallic Spintronic Devices

Wednesday, November 6, 2002, 9:20 am, Room C-102

Session: Metal-Organic Interfaces
Presenter: M.V. Tiba, Eindhoven U. of Technology, CNM, The Netherlands
Authors: M.V. Tiba, Eindhoven U. of Technology, CNM, The Netherlands
O. Kurnosikov, Eindhoven U. of Technology, CNM, The Netherlands
B. Koopmans, Eindhoven U. of Technology, CNM, The Netherlands
J.T. Kohlhepp, Eindhoven U. of Technology, CNM, The Netherlands
C.F.J. Flipse, Eindhoven U. of Technology, CNM, The Netherlands
W.I.M. de Jonge, Eindhoven U. of Technology, CNM, The Netherlands
U.S. Schubert, Eindhoven U. of Technology, CNM, The Netherlands
Correspondent: Click to Email
Motivated by the success of polymer based- and molecular electronics, a challenging new field is emerging. Recent work has demonstrated the feasibility of hybrid organo-metallic spintronics, in which the spin degree of freedom is explicitly being used. Application in future magnetic sensor and memory technology has been proposed. Improved characteristics of such devices require very clean interfaces, therefore deposition of organic molecules in UHV environment is desirable. A severe complication of growing ordered structures of organic molecules on transition metal ferromagnetic substrates is their high reactivity. In this work we investigate the influence of substrate passivation on the bonding to the substrate (and hence the molecular ordering) for different organic molecules. Selection of the molecules is based on their electronic properties as well as their tendency to form well ordered layers. In the particular case of PTCDA molecules deposited on a Ni(111) substrate we show that quarter monolayer of oxygen reduces enough the reactivity of Ni to enable the molecules to form an ordered structure.@footnote 1@ Current activities aiming at the fabrication of organo-metallic hybrid magnetic tunnel junctions having polycrystalline Co electrodes and organic barriers will be addressed as well. @FootnoteText@ @footnote 1@ M.V.Tiba et al. Surf. Sci. 498 (2002) 161.