Magnetic and surface studies of transition metal complexes for molecular spintronics

ORAL

Abstract

We have synthesized organometallic complexes consisting of a transition metal ion chelated by amphiphilic ligands. This talk will focus on efforts to assess the suitability of these molecules for the creation of magnetically active monolayers via the Langmuir-Blodgett technique. The paramagnetic nature of the molecules is probed by SQUID magnetometry and EPR spectroscopy, demonstrating that the spin magnitude can be varied by chemical substitution of the transition metal ion. To study monolayer formation ability, the molecules are spread on a Langmuir trough and pressure-area isotherms are recorded under compression. Attempts to deposit monolayers onto substrates and to make electrical contact for transport measurements will also be discussed.

*Partial support for this research provided by the Ohio State University Institute for Materials Research under Grant No. IMR-G0010.

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Authors

  • Patrick Truitt

    • Dept. of Physics, The Ohio State University

  • Raman Talwar

    • Dept. of Physics, The Ohio State University

  • Ezekiel Johnston-Halperin

    • Department of Physics, The Ohio State University
    • Dept. of Physics, The Ohio State University
    • 1 (1 Department of Physics, The Ohio State University; 2 Department of Physics and Astronomy, University of California, Riverside)
    • The Ohio State University

  • Norbani Abdullah

    • Dept. of Chemistry, University of Malaya

  • C.R. Reed

    • Dept. of Chemistry, The Ohio State University
    • Dept. of Chemistry, The Ohio State University, Columbus, Ohio 43210-1185

  • Namrata Singh

    • Dept. of Chemistry, The Ohio State University

  • Chandrani Chatterjee

    • Dept. of Chemistry, The Ohio State University

  • M.H. Chisholm

    • Dept. of Chemistry, The Ohio State University
    • Dept. of Chemistry, The Ohio State University, Columbus, Ohio 43210-1185