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Molecular Nano Magnets induced current suppression in a Ta/NiFe/AlOx/NiFe/Ta Magnetic Tunnel Junction Molecular Spintronic Device (MTJMSD)

POSTER

Abstract

Molecular magnetic materials can make a fundamental link between spintronic and molecular electronics. Using molecular components, electronics can reach its ultimate scale limit with properties of bulk magnetic materials while exploiting quantum effects. Single Molecule Magnets (SMM) can manipulate spins and charges and enhance memory devices and information processing. This Research investigates a magnetic tunnel junction-based molecular spintronic device (MTJMSD) in which single Molecule Magnets are attached to the exposed edges of ferromagnetic electrodes (FMEs) and act as conducting bridges. The fabricated MTJMSD is made of Ta(5nm)/NiFe(10nm)/AlOx(2nm)/NiFe(5nm)/Ta(5nm). Magnetic molecules can be coupled to the ferromagnetic electrodes weakly or strongly based on the energy difference at the barrier between molecules and contacts. Our experimental transport studies show current suppression to

Publication: [1] 1. A. R. Rocha, V. M. García-suárez, S. W. Bailey, C. J. Lambert, J. Ferrer, and S. Sanvito, "Towards molecular spintronics," Nature Materials, vol. 4, no. 4, pp. 335-339, 2005/04/01 2005, doi: 10.1038/nmat1349<br>[2] P. Tyagi, C. Baker and C. D'Angelo, Nanotechnology 26, 305602 (2015).<br>[3] P. Tyagi and E. Friebe, J. Mag. Mag. Mat. 453, 186-192 (2018).<br>[4] P. Tyagi and C. Riso, Organic Electronics 75, 105421 (2019).<br>[5] Savadkoohi, M. et al. "Interaction between magnetic molecules and two ferromagnetic electrodes of a magnetic tunnel junction (MTJ)." Journal of Magnetism and Magnetic Materials 529 (2021): 167902.

Presenters

  • Marzieh Savadkoohi

    University of District of Columbia

Authors

  • Marzieh Savadkoohi

    University of District of Columbia

  • Andoniaina M Randriambololona

    University of the District of Columbia, University of district of columbia

  • Eva Mutunga

    University of the District of Columbia, university of district of columbia

  • Pawan Tyagi

    University of the District of Columbia