New aspects of nonlinear conductivity in organic charge-transfer salts
Abstract
A θ-phase organic charge-transfer salt shows giant nonlinear conductivity and works like a two-terminal electronic device to generate alternating current; this is called an organic thyristor. The nonlinear conductivity is ascribed to the melting of competing charge order patterns, where the so-called three-fold pattern is characteristic of the nearly triangular θ-phase lattice. Nonlinear conductivity is being found in many other organic charge-transfer salts.