Different superconducting percolation regimes in the layered organic Mott system $\kappa$-(BEDT-TTF)${}_2$Cu[N(CN)${}_2$]Cl -- evidence from fluctuation spectroscopy

Jens Mueller, Jens Brandenburg, John A. Schlueter

Fluctuation spectroscopy is used to investigate the organic bandwidth-controlled Mott system $\kappa$-(BEDT-TTF)${}_2$Cu[N(CN)${}_2$]Cl. We find evidence for percolative-type superconductiv…