An experimental study of electrical transport phenomena in TTF-TCNQ in the low-temperature ($T<4.2$ K) dielectric regime is reported. The current-voltage curves are nonlinear with conductance increasing with increasing voltage. The observed nonlinearity is insensitive to radiation-induced defects at the fraction of a percent level. The data are discussed in terms of electric field depinning of the incommensurate charge-density wave with a critical electric field of approximately 1.5 ×{} 10² V/cm.
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Cohen et al. (1976) studied this question.
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