Microwave conductivity of alkali-metal-doped polyacetylene

Summary form only given. We report the temperature dependence of microwave conductivity in alkali-metal doped polyacetylene. The measurements have been performed at 4.5 GHz using the cavity perturbation method. The high density- polyacetylene films are synthesized following the modified Shirakawa method. Doping of polyacetylene with alkali metals has been accomplished by vapor phase method. The results are compared with the dc conductivity measured by the four-probe or Montgomery method and their analysis are under study.