Collective conduction mechanism in a quasi-one-dimensional TiS$_3$ compound

The resistance of TiS₃ single crystal whiskers has been measured as a function of temperature and electric field in the range of 4.2–340 K. At temperatures below 60 K, a strong nonlinearity of the current-voltage characteristics has been revealed. Below 10 K, the current-voltage characteristics are of the threshold type. The results are attributed to the transition of electrons to a collective state, probably, with the formation of a charge density wave.