Article Dans Une Revue Solid State Communications Année : 1980

Commensurability and fluctuating conductivity in the organic conductor TSF-TCNQ

J.F. Thomas
  • Fonction : Auteur
D. Jérome

Résumé

We report the pressure dependence of the phase transition in TSF-TCNQ as determined by resistivity measurements. We find a narrow pressure domain centered on 6.25 kbar where the transition temperature peaks above a monotonous pressure dependence. We suggest that there is a commensurate × 3 superlattice in this pressure regime resulting from an increase in charge transfer from 0.63 under ambient pressure to 2 3. A drop of longitudinal conductivity related to the × 3 commensurability is visible in the same temperature region where X-ray diffuse scattering data show 1-D features for the precursor fluctuations. We suggest that like TTF-TCNQ, the metallic conductivity of TSF-TCNQ is also influenced by the fluctuating Fröhlich mode.

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hal-04944471 , version 1 (12-03-2025)

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J.F. Thomas, D. Jérome. Commensurability and fluctuating conductivity in the organic conductor TSF-TCNQ. Solid State Communications, 1980, 36 (9), pp.813-816. ⟨10.1016/0038-1098(80)90018-6⟩. ⟨hal-04944471⟩
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