Theoretical Study of Spin-Polarized Electron Tunneling via C$_{60}$ Molecules

ORAL

Abstract

The controlled injection and transport of spin-polarized electrons through organic molecules has drawn increasing attention in recent years due to its potential applications in molecular and molecular-nano hybrid electronics and sensors. In this talk, we will present the results of a theoretical study of spin-polarized electron tunneling via C$_{60}$ molecules in contact with ferromagnetic nickel electrodes. In this system, the resistance varies as the magnetic moments in the two electrodes are tuned from parallel to anti-parallel alignment. Particular attention is given to the chemical bonding features in the molecule-electrode interface, which leads to the observed difference in magnetoresistance.

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Authors

  • Haiying He

  • Ravindra Pandey

    • Michigan Technological University, USA
    • Department of Physics, Michigan Technological University, Houghton, MI
    • Department of Physics, Michigan Technological University, Houghton, MI 49931

  • Shashi Karna

    • US Army Research Laboratory, Weapons and Materials Research Directorate, ATTN: AMSRD-ARL-WM, Aberdeen Proving Ground, MD 21005-5069
    • US Army Research Laboratory, Weapons and Materials Directorate, Aberdeen Proving Ground, MD 21005-5069