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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