Spin-orbit excitations and electronic structure of the putative Kitaev magnet $\alpha$-RuCl${}_3$

Luke J. Sandilands, Yao Tian, Anjan A. Reijnders +5

Mott insulators with strong spin-orbit coupling have been proposed to host unconventional magnetic states, including the Kitaev quantum spin liquid. The 4$d$ system $\alpha$-RuCl${}_3$ ha…