Electronic properties of PbMo6S8 and CuxMo6S8

Abstract

Normal-state properties of sputtered, evaporated, and sintered Pb${\mathrm{Mo}}_6$ ${\mathrm{S}}_8$ and ${\mathrm{Cu}}_x{\mathrm{Mo}}_6{\mathrm{S}}_8$ samples are reported ($1.6\le x\le 2.5$). These include the temperature dependence of resistivity, magnetoresistance, and Hall effect. When combined with superconducting properties (measured on the same samples) and theory, a number of Fermi-surface and superconducting parameters are derived. Fits to the temperature dependence of the resistivity are compared with similar fits for $A-15\mathrm{}$ structure superconductors.