No abstract

We have measured the nonlinear conductivity, the thermopower, and the narrow-band noise in TaS3 as a function of elastic strain e along the chain axis. Both the thermopower and the chargedensity-wave (CDW) conductivity are dependent on the temperature and c. history of the sample. There are indications that the CDW becomes commensurate at @=0. 5%, where (at most temperatures) (1) there is a maximum in the threshold field for nonlinear conductivity, (2) there are anomalies in the thermopower and resistance, and (3) the narrow-band noise disappears.