Magnetic order in $\alpha$-RuCl${}_3$: a honeycomb lattice quantum magnet with strong spin-orbit coupling

J. A. Sears, M. Songvilay, K. W. Plumb +5

We report magnetic and thermodynamic properties of single crystal $\alpha$-RuCl${}_3$, in which the Ru${}^{3+}$ ($4d^5$) ion is in its low spin state and forms a honeycomb lattice. Two feat…