Systematic Study of the (ET)2I3 Reticulate Doped Polycarbonate Film: Structure, ESR, Transport Properties and Superconductivity

E. Laukhina , Jacek Ulanski , A. Khomenko , S. Pesotskii , V. Tkachev , L. Atovmyan , E. Yagubskii , C. Rovira , J. Veciana , J. Vidal-Gancedo , V. Laukhin

The crystalline network structure of conducting (ET)2I3 reticulate doped polycarbonate (RDP) films were analysed by X-ray as well as ESR, transport properties and superconducting characteristics of the films were investigated. It was found that under certain conditions of the second step of the RDP-film preparation, an oriented α–(ET)2I3 crystalline network is formed. The c-axis of the linked α–(ET)2I3 crystallites are perpendicular to the film surface and consequently their conducting layers are parallel to this surface. Moreover, this type of crystalline network orientation is kept during the α- →βt-(ET)2I3 transition which takes place under film annealing. Thus, the conducting layers of the linked superconducting βt-(ET)2I3 crystals are also parallel to the film surface. It was demonstrated that superconducting properties are present in all parts of the βt-(ET)2I3 RDP film.

Domaines: Articles anciens

E. Laukhina, Jacek Ulanski, A. Khomenko, S. Pesotskii, V. Tkachev, et al.. Systematic Study of the (ET)2I3 Reticulate Doped Polycarbonate Film: Structure, ESR, Transport Properties and Superconductivity. Journal de Physique I, 1997, 7 (12), pp.1665-1675. ⟨10.1051/jp1:1997161⟩. ⟨jpa-00247478⟩