Thermal fluctuations effect on the charge density wave dynamics in quasi-one dimensional conductors

• The current density of CDW is non-monotonous when the temperature increases.
• The threshold field increases with temperature increase and show a maximum near 100 K.
• The thermal fluctuations play a crucial role on the dynamic properties of CDW.
• The FLR model is insufficient to explain all results observed experimentally in CDW systems.

The effect of thermal fluctuations on the charge density wave (CDW) dynamics properties of a one-dimensional conductor is studied numerically in the weak pinning limit. In good agreement with a recent experimental work on the CDW conductor K0.3MoO3, the addition of thermal fluctuations affects the CDW dynamics of the system. The results are discussed in the context of damping mechanisms of the collective mode arising from dissipative normal currents induced by dynamic deformations of the CDW and in the context of CDW dislocations.