Figure 1: Melting and freezing of charge motion in α-(ET)2I3 and AC-field-induced charge localization.
From: Optical freezing of charge motion in an organic conductor
(a) CO insulator-to-metal transition (red arrow, melting) and metal-to-CO insulator transition (blue arrow, freezing) for both thermal (equilibrium) and optical (non-equilibrium) transitions in α-(ET)2I3. (b) CO gap is opened by the decrease of transfer integral t, because of the competing energy balance between Coulomb interaction V and t. t is changed from t0 to t', induced by the strong AC electric field E(ω).
