Exotic low-energy excitations emergent in the random Kitaev magnet Cu${}_2$IrO${}_3$

Y. S. Choi, C. H. Lee, S. Lee +11

We report on magnetization $M(H)$, dc/ac magnetic susceptibility $\chi (T)$, specific heat $C_{\mathrm{m}}(T)$ and muon spin relaxation ($\mu$SR) measurements of the Kitaev honeycomb iri…