Abstract
We have observed a nonlinear transport behavior in the magnetic field-induced spin-density-wave (SDW) state in (TMTSF)2ClO4 at low temperatures. The nonlinearity appears only in the diagonal conductivity with a very small threshold electric field. This observation is indicative of a possibility that the sliding motion of the SDW is responsible for this nonlinearity. The electric field dependence of the small period oscillations similar to the Shubnikov-de Haas effect suggests that this oscillatory phenomenon relates to some kind of tunneling mechanism.
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