Magnetic Excitations and Continuum of a Field-Induced Quantum Spin Liquid in $\alpha$-RuCl${}_3$

Zhe Wang, S. Reschke, D. Hüvonen +6

We report on terahertz spectroscopy of quantum spin dynamics in $\alpha$-RuCl${}_3$, a system proximate to the Kitaev honeycomb model, as a function of temperature and magnetic field. An…