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.

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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