Microwave Conductivities of Polymer Films Doped with BEDT-TTF Polyiodides
D. Staerk, H.W. Helberg
Third Physical Institute, University of Göttingen, 37073 Göttingen, Germany

J. Ulański
Polymer Institute, Technical University of Łódź, 90-924 Łódź, Poland

and J.K. Jeszka
Center of Molecular and Macromolecular Studies, 90-363 Łódź, Poland
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Conducting reticulate doped polymeric films containing BEDT-TTF iodide crystalline networks have been annealed in order to transform the crystallites into crystal phases with metallic conductivity. The microwave conductivity of these films was measured before and after annealing. The temperature dependence of the conductivity changes dramatically with op­timal annealing temperatures and times. This change in the behavior cor­responds to the transformation of the α-phase into the superconducting αt-phase observed in (BEDT-TTF)2I3 single crystals.
DOI: 10.12693/APhysPolA.87.797
PACS numbers: 72.80.Le, 72.60.+g, 78.70.Gq