J. Phys. IV France
Volume 114, April 2004
Page(s) 127 - 128

J. Phys. IV France
114 (2004) 127
DOI: 10.1051/jp4:2004114028

Microwave investigations of the transverse response in (TMTSF) 2PF 6

K. Petukhov and M. Dressel

Physikalisches Institut, Universität Stuttgart, Pfaffenwaldring 57, 70550 Stuttgart, Germany

We report on dc and microwave experiments on the quasi one-dimensional organic conductor (TMTSF) 2PF 6 along the  a, b' and  $c^{\ast }$ directions. In the normal state below 70 K, the dc resistivity follows a power-law $\rho _{\rm a}$, $\rho _{\rm b} \propto T^{ 2}$ and $\rho _{\rm c} \propto \quad T$. Above T = 100 K the exponents extracted from the data (transformed to constant volume conditions) in the longitudinal and transverse directions do not form a picture which is consistent with the predictions by the Luttinger liquid model. The contactless microwave measurements of single crystals along the b' axis reveal an anomaly between 25 and 55 K which is not understood yet. Key words. one-dimensional organic conductors - transport properties - Fermi liquid - Luttinger liquid.

© EDP Sciences 2004