Naslov
Mott-Peierls phase in deuterated copper-DCNQI systems : a comprehensive study of longitudinal and transverse conductivity and aging effects

Autori
Pinterić, Marko ; Vuletić, Tomislav ; Lončarić, Martin ; Petukhov, Kostja ; Gorshunov, Boris ; Schütz, Jost Uerlich von ; Tomić, Silvia ; Dressel, Martin

Izvornik
Journal of physics. Condensed matter (0953-8984) 15 (2003), 43; 7351-7364

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
charge-density wave; transport anisotropy; dc; microwave and optical conductivity; ageing effects

Sažetak
Transport and low-frequency optical reflection measurements (180-380 GHz) are reported for the quasi-three-dimensional conducting alloy Cu[(2, 5(CH3)2-DCNQI)0.70(2, 5(CD3)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.

Izvorni jezik
Engleski

Znanstvena područja
Fizika

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