Evidence for the existence of the inherent periodicity in the switched state at low temperatures inK0.3MoO3

The current response was measured in ${\mathrm{K}}_{0.3}$Mo${\mathrm{O}}_3$ in the highly conducting state after the switching at low temperatures, both in time domain and in frequency domain. Clear evidence was found which shows that the switching or the strong nonlinear conduction in this temperature range is due to the sliding motion of charge-density waves. Furthermore, the dynamical behavior of the charge-density waves very near the threshold voltage was analyzed quantitatively, which is unique to the low-temperature switching in ${\mathrm{K}}_{0.3}$Mo${\mathrm{O}}_3$.