Bandwidth-tuning from insulating Mott quantum spin liquid to Fermi liquid via chemical substitution in $\kappa$-[(BEDT-TTF)${}_{1-x}$(BEDT-STF)${}_x$]${}_2$Cu${}_2$(CN)${}_3$

Y. Saito, R. Rösslhuber, A. Löhle +5

The electronic properties of molecular conductors can be readily varied via physical or chemical pressure as it increases the bandwidth W; this enables crossing the Mott insulator-…