Thermal conductivity of the quantum spin liquid candidate EtMe3Sb[Pd(dmit)2]2: No evidence of mobile gapless excitations

P. Bourgeois-Hope, F. Laliberté, E. Lefrançois +9

The thermal conductivity $\kappa$ of the quasi-2D organic spin-liquid candidate EtMe${}_3$Sb[Pd(dmit)${}_2$]${}_2$ (dmit-131) was measured at low temperatures, down to 0.07 K. We observe a va…