MICROWAVE CONDUCTIVITIES OF POLYMER-FILMS DOPED WITH BEDT-TTF POLYIODIDES

Conducting reticulate doped polymeric films containing BEDT-TTF iodide crystalline networks have been annealed in order to transform the cry stallites into crystal phases with metallic conductivity. The microwav e conductivity of these films was measured before and after annealing. The temperature dependence of the conductivity changes dramatically w ith optimal annealing temperatures and times. This change in the behav ior corresponds to the transformation of the alpha-phase into the supe rconducting alpha(t)-phase observed in (BEDT-TTF)(2)I-3 single crystal s.