Disorder-enriched magnetic excitations in the Kitaev quantum spin liquid candidate Na${}_2$Co${}_2$TeO${}_6$

Li Xiang, Ramesh Dhakal, Mykhaylo Ozerov +9

Using optical magneto-spectroscopy, we investigate the magnetic excitations of Na${}_2$Co${}_2$TeO${}_6$ in a broad magnetic field range ($0\mathrm{T}\le \mathrm{B}\le 17.5\mathrm{T}$) at low tempe…