Mott-Peierls phase in deuterated copper-DCNQI systems: a comprehensive study of longitudinal and transverse conductivity and ageing effectsPinterić, Marko (Avtor) Vuletić, Tomislav (Avtor) Lončarić, Martin (Avtor) Petukhov, Konstantin (Avtor) Gorshunov, Boris (Avtor) Schütz, Jost Ulrich von (Avtor) Tomić, Silvija (Avtor) Dressel, Martin (Avtor) optical reflection measurementsorganic conductorsmicrowave conductivityphase transitions metal-insulatorageing effectTransport and low-frequency optical reflection measurements (180-380 GHz) are reported for the quasi-three-dimensional conducting alloy ▫$Cu[(2,5(CH_3)_2-DCNQI)_{0.70}(2,5(CD_3)_2-DCNQI)_{0.30}]_2$▫ between room temperature and 35 K. The optical properties of the system are strongly anisotropic. It is metallic down to 60 K where a Mott-Peierls phase transition occurs. While the transverse conductivity remains practically unchanged, the longitudinal conductivity abruptly drops at the phase transition. Comparing our latest results with previous dc data and measurements of the microwave conductivity also reported here, we find indications of an ageing effect in these samples.20032012-06-01 12:05:03Neznano27706UDK: 539.2COBISS_ID: 8318998ISSN pri članku: 0953-8984NUK URN: URN:SI:UM:DK:BPYXBNYKsl