Abstract
We find a giant nonlinear conduction in the charge-ordered organic salt in a rapidly cooled state from 34 to 99 K, which cannot be ascribed to a simple Joule heating. The observed voltage-current characteristics are essentially identical to those of the related organic salt , while the energy scale and the working temperatures are 1 order of magnitude higher. Considering that two kinds of charge-ordered domains coexist in this rapidly cooled state, we suggest that the inhomogeneity made of the two charge orders plays an essential role in the giant nonlinear conduction of the -type organic salts.
- Received 1 July 2008
DOI:https://doi.org/10.1103/PhysRevB.79.165102
©2009 American Physical Society