Spin-$S$ Kitaev-Heisenberg model on the honeycomb lattice: A high-order treatment via the many-body coupled cluster method

Marios Georgiou, Ioannis Rousochatzakis, Damian J. J. Farnell +2

We study the spin-$S$ Kitaev-Heisenberg model on the honeycomb lattice for $S=1/2$, $1$ and $3/2$, by using the coupled cluster method (CCM) of microscopic quantum many-body th…