LOW-TEMPERATURE SPIN-DENSITY-WAVE TRANSPORT

The spin-density-wave contribution to the electric transport gives ris e to novel nonlinear conduction phenomena in (TMTSF)2PF6. In the tempe rature range of the typical sliding conduction there are significant i nternal mode excitations and the coupling to the one-electron excitati ons controll the dynamics of the condensate. At lower temperatures, be low T = 1 K, a new type of collective spin-density-wave transport emer ges as the normal carriers freeze out. The current density follows a t unneling expression, and the parameters are suggestive for excitations well below the single particle gap.