S. Brazovskii, P. Monceau and N. Kirova
J. Phys. IV France 131 (2005) 107-110
Nonlinear electric conduction in the charge ordering state of (TMTTF)2 SbF6M. Nagasawa1, 2, T. Nagasawa2, K. Ichimura3 and K. Nomura3
1 Department of Natural Sciences, Tokyo Denki University, Tokyo 101-8457, Japan
2 Department of Material Science, Tokyo Denki University, Tokyo 101-8457, Japan
3 Division of Physics, Hokkaido University, Sapporo 060-0810, Japan
In the charge ordering (CO) state of the quasi-one dimensional conductors (TMTTF)2SbF6, we measured the current-voltage relations by the pulse current method at ambient pressure. From the measurement, we found that the conductivity is constant at low electric field regime and increases with field above a certain field. It is similar to the nonlinear conduction due to the ordinary density wave (DW) sliding. However, the magnitude of the threshold electric field was larger than that in the DW system. We will discuss the origin of the non-linear electric conduction in the CO state of (TMTTF)2SbF6 and the apparent similarity with it by the DW sliding.
© EDP Sciences 2005