Charge density and mobility of charge density waves in the quasi-one-dimensional conductor NbS$_3$

Three charge density waves (CDWs), two of which are formed above room temperature, are observed in the NbS$_3$ monoclinic phase (NbS$_3$-II). The charge density and mobility in the high-field limit have been determined for each of three CDWs in this work using the synchronization effect of CDWs in high-frequency fields. It has been found that the mobility of each CDW in this limit is approximately equal to the normal-state mobility of quasiparticles condensed in it. Furthermore, correlation has been observed between the temperature dependences of mobilities of CDWs and quasiparticles. The results of this work refresh problems of a mechanism of the limit conductivity of CDWs and of the distribution of CDWs between atomic chains in the unit cell.