J. Phys. IV France 10 (2000) Pr3-103-Pr3-112
Optical properties of low-dimensional systems : The Bechgaard salts caseL. Degiorgi1, V. Vescoli1, W. Henderson2, G. Gruner2 and L.K. Montgomery3
1 Laboratorium für Festkörperphysik, ETH Zurich, 8093 Zurich, Switzerland
2 Department of Physics, University of California at Los Angeles, Los Angeles, CA 90095-1547, U.S.A.
3 Department of Chemistry, University of Indiana, Bloomington, IN 47405, U.S.A.
We review our optical investigations on the organic Bechgaard salts. These prototype quasi-one dimensional systems reveal non-Fermi liquid features in their electrodynamic response. We show that various aspects of the exotic normal state properties along the chains are consistent with the predictions of the Tomonaga- Luttinger liquid theory or Luther-Emery model for one-dimensional systems. The role played by the interchain coupling will be also addressed.
© EDP Sciences 2000