Optical and Raman Study of $\alpha$-RuCl$_3$

ORAL

Abstract

We report on the optical and Raman spectroscopy of the layered honeycomb magnet $\alpha$-RuCl$_3$. Anomalies in the phonon spectrum reveal a structural phase transition near 150K and we also also observe a series of Ru $d-d$ excitations in the range 0.1 to 3.5 eV . We compare our measurements with LDA calculations of the electronic structure and discuss the possibility of $J_{eff}$ physics in this compound.

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Authors

  • Luke Sandilands

    • University of Toronto

  • Anjan Reijnders

    • University of Toronto

  • Yao Tian

    • University of Toronto

  • Kemp Plumb

    • University of Toronto

  • Jennifer Sears

    • University of Toronto

  • Vijay Venkataraman

    • University of Toronto

  • Hae-Young Kee

    • University of Toronto

  • Young-June Kim

    • University of Toronto

  • Kenneth Burch

    • Boston College