Anisotropic charge dynamics in the quantum spin-liquid candidate $\kappa$-(BEDT-TTF)${}_2$Cu${}_2$(CN)${}_3$

M. Pinteric, M. Culo, O. Milat +11

We have in detail characterized the anisotropic charge response of the dimer Mott insulator $\kappa$-(BEDT-TTF)${}_2$\-Cu${}_2$(CN)${}_3$ by dc conductivity, Hall effect and dielectric spectr…