Abstract

The resistivity along the conducting chains, ρ xx , and the Hall resistivity ρ xy are investigated as a function of the electric field in the magnetic-field-induced spin-density wave (FISDW) states of (TMTSF) 2 PF 6 under hydrostatic pressure. Both resistivities decrease with increasing electric field above the same well-defined threshold electric field in the order of 100 μV/cm. We interpret the nonlinearity by the depinning and sliding of the FISDW. The nonlinearity in ρ xy is much stronger than in ρ xx what we attribute to an unusually strong coupling between the FISDW and single-particle excitations

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