Spin-density-wave gap in the Bechgaard salts (TMTSF)2X

V. Vescoli, L. Degiorgi, M. Dressel, A. Schwartz, W. Henderson, B. Alavi, G. Grüner, J. Brinckmann, A. Virosztek

Research output: Contribution to journalArticle

26 Citations (Scopus)

Abstract

The electrodynamic response of the organic linear chain Bechgaard salts (TMTSF)2X (X=PF6 and ClO4) has been investigated over a very broad spectral range by applying a variety of optical spectroscopic tools. We focus our attention on the spin-density-wave ground state and, in particular, on its manifestation in the optical properties, with polarization perpendicular to the chains. Along this direction, we have clearly identified the spin-density-wave gap in the optical spectra of both compounds. We discuss the single particle excitation across the gap within a formalism similar to the one worked out for the superconducting state, but with Bardeen-Cooper-Schrieffer case I coherence factors, as well as an approach based on the two-dimensional Hubbard model.

Original languageEnglish
Pages (from-to)8019-8027
Number of pages9
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume60
Issue number11
Publication statusPublished - 1999

Fingerprint

Spin density waves
Salts
salts
Hubbard model
Electrodynamics
two dimensional models
electrodynamics
Ground state
optical spectrum
Optical properties
Polarization
formalism
optical properties
ground state
polarization
excitation
Direction compound
perchlorate

ASJC Scopus subject areas

  • Condensed Matter Physics

Cite this

Vescoli, V., Degiorgi, L., Dressel, M., Schwartz, A., Henderson, W., Alavi, B., ... Virosztek, A. (1999). Spin-density-wave gap in the Bechgaard salts (TMTSF)2X. Physical Review B - Condensed Matter and Materials Physics, 60(11), 8019-8027.

Spin-density-wave gap in the Bechgaard salts (TMTSF)2X. / Vescoli, V.; Degiorgi, L.; Dressel, M.; Schwartz, A.; Henderson, W.; Alavi, B.; Grüner, G.; Brinckmann, J.; Virosztek, A.

In: Physical Review B - Condensed Matter and Materials Physics, Vol. 60, No. 11, 1999, p. 8019-8027.

Research output: Contribution to journalArticle

Vescoli, V, Degiorgi, L, Dressel, M, Schwartz, A, Henderson, W, Alavi, B, Grüner, G, Brinckmann, J & Virosztek, A 1999, 'Spin-density-wave gap in the Bechgaard salts (TMTSF)2X', Physical Review B - Condensed Matter and Materials Physics, vol. 60, no. 11, pp. 8019-8027.
Vescoli V, Degiorgi L, Dressel M, Schwartz A, Henderson W, Alavi B et al. Spin-density-wave gap in the Bechgaard salts (TMTSF)2X. Physical Review B - Condensed Matter and Materials Physics. 1999;60(11):8019-8027.
Vescoli, V. ; Degiorgi, L. ; Dressel, M. ; Schwartz, A. ; Henderson, W. ; Alavi, B. ; Grüner, G. ; Brinckmann, J. ; Virosztek, A. / Spin-density-wave gap in the Bechgaard salts (TMTSF)2X. In: Physical Review B - Condensed Matter and Materials Physics. 1999 ; Vol. 60, No. 11. pp. 8019-8027.
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