M. Nagasawa et al., TRANSIENT VOLTAGE OSCILLATION, NARROW-BAND-NOISE AND NONLINEAR CONDUCTIVITY IN SDW - (TMTSF)2ASF6, Journal de physique. IV, 3(C2), 1993, pp. 197-200
Transient voltage oscillation was observed in the spin-density wave ph
ase of (TMTSF)2AsF6. Its frequency is proportional to the non-ohmic cu
rrent. In high electric field, current-field relation becomes irregula
r and transient oscillation diminishes. The bistability of the density
-wave conductivity proposed by Littlewood is likely to be realized.