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Optical and photoemission evidence for a Tomonaga-Luttinger liquid in the Bechgaard salts |
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| Authors: | V Vescoli F Zwick W Henderson L Degiorgi M Grioni G Gruner LK Montgomery |
| Institution: | Laboratorium für Festk?rperphysik,ETH Zurich, 8093, Zurich, Switzerland école Polytechnique Fédérale de Lausanne, Institut de Physique Appliqué, 1015, Lausanne, Switzerland Department of Physics, University of California at Los Angeles, 90095-1547, Los Angeles, CA, USA Department of Chemistry, University of Indiana, 47405, Bloomington, IN, USA |
| Abstract: | Combined optical and photoemission experiments on the quasi-one dimensional Bechgaard salts reveal the non-Fermi liquid character of these prototype quasi-one dimensional interacting electron systems. 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. We also discuss the effect of interchain coupling on the insulator-metal transition, associated with the electron confinement-deconfinement crossover. Received 17 May 1999 and Received in final form 13 July 1999 |
| Keywords: | PACS 78 20 -e Optical properties of bulk materials and thin films - 79 60 -i Photoemission and photoelectron spectra - 71 27 +a Strongly correlated electron systems heavy fermions |
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