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  4. The transition from a pseudogapped metal to an insulator: photoemission and optics of (TMTSF)(2)ReO4
 
research article

The transition from a pseudogapped metal to an insulator: photoemission and optics of (TMTSF)(2)ReO4

Zwick, F.
•
Grioni, M.  
•
Margaritondo, G.  
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1999
Solid State Communications

We performed optical and photoemission experiments on the Bechgaard salt (TMTSF)(2)ReO4, a quasi-one-dimensional (1D) organic conductor that undergoes a metal-insulator (Peierls) transition at T-c similar to 180 K. As in other compounds of the same family, we observe non-Ferri liquid features in the metallic state, namely a deep pseudogap at the chemical potential. A fully gapped state develops below T-c from this peculiar normal state. Across the transition we successively observe, on the same material, the characteristic spectral signatures of metallic and insulating Bechgaard salts. The characteristic exponent obtained from an analysis of the optical conductivity agrees with the predictions of the 1D Luther-Emery model for a charge-density-wave system. (C) 1999 Elsevier Science Ltd. All rights reserved.

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Type
research article
DOI
10.1016/S0038-1098(99)00469-X
Web of Science ID

WOS:000084171800001

Author(s)
Zwick, F.
Grioni, M.  
Margaritondo, G.  
Vescoli, V.
Degiorgi, L.
Alavi, B.
Gruner, G.
Date Issued

1999

Published in
Solid State Communications
Volume

113

Issue

4

Start page

179

End page

184

Subjects

organic crystals

•

electron-electron interactions

•

optical properties

•

light absorption and reflection

•

photoelectron spectroscopies

•

LUTTINGER-LIQUID

•

ORGANIC CONDUCTORS

•

BECHGAARD SALTS

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ONE-DIMENSION

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SUPERCONDUCTORS

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ELECTRODYNAMICS

•

CHARGE

•

MODEL

Note

Ecole Polytech Fed Lausanne, Inst Phys Appl, CH-1015 Lausanne, Switzerland. ETH Zurich, Festkorperphys Lab, CH-8093 Zurich, Switzerland. Univ Calif Los Angeles, Dept Phys, Los Angeles, CA 90095 USA. Grioni, M, Ecole Polytech Fed Lausanne, Inst Phys Appl, CH-1015 Lausanne, Switzerland.

ISI Document Delivery No.: 264GG

Editorial or Peer reviewed

REVIEWED

Written at

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Available on Infoscience
October 3, 2006
Use this identifier to reference this record
https://infoscience.epfl.ch/handle/20.500.14299/234826
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