Magnetic structure and excitation spectrum of the hyperhoneycomb Kitaev magnet $\beta$-Li${}_2$IrO${}_3$

Samuel Ducatman, Ioannis Rousochatzakis, Natalia B. Perkins

We present a theoretical study of the static and dynamical properties of the Kitaev magnet $\beta$-Li${}_2$IrO${}_3$ based on the minimal $J$-$K$-$\Gamma$ model. We argue that the incommensurat…