Electronic structure and transport properties of [Fe(qsal)<sub>2</sub>][Ni(dmit)<sub>2</sub>] molecular spin crossover complex.

ORAL

Abstract

We report on the electronic structure of a mixed metal spin crossover molecular complex [Fe(qsal)2][Ni(dmit)2]. This spin crossover molecular complex exhibits an atypical low resistivity making the system of interest for nonvolatile molecular memory applications, but the availability of the device functionality depends on a good understanding of the electronic structure. Photoemission indicates a typical Fe(III) complex in the high spin state at room temperature with a ferromagnetic coupling between Fe and Ni evident in X-ray magnetic circular dichroism. Absorption spectra obtained using circularly polarized light with opposite polarization indicate the system exhibits chiral behavior. This chirality can be attributed to the loss of inversion symmetry due to the presence of [Ni(dmit)2]. There is the prospect of realizing a topologically protected spin current in such systems if used as the transistor channel.

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Presenters

  • Mohammad Z Zaz

    • University of Nebraska - Lincoln
    • University of Nebraska- Lincoln

Authors

  • Mohammad Z Zaz

    • University of Nebraska - Lincoln
    • University of Nebraska- Lincoln

  • Thilini K Ekanayaka

    • University of Nebraska - Lincoln

  • Esha Mishra

    • University of Nebraska - Lincoln

  • Kayleigh A McElveen

    • University of Nebraska-Lincoln
    • Department of Chemistry, University of Nebraska-Lincoln

  • Gauthami Viswan

    • University of Nebraska - Lincoln

  • Jack L Rodenburg

    • University of Nebraska - Lincoln
    • University of Nebraska-Lincoln
    • University of Nebraska- Lincoln

  • Alpha T N'Diaye

    • Lawrence Berkeley National Laboratory
    • Advanced Light Source, Lawrence Berkeley National Laboratory

  • David A Shapiro

    • Lawrence Berkeley National Laboratory

  • Rebecca Y Lai

    • University of Nebraska-Lincoln
    • Department of Chemistry, University of Nebraska-Lincoln

  • Robert Streubel

    • University of Nebraska - Lincoln

  • Peter A Dowben

    • University of Nebraska - Lincoln