Article Dans Une Revue Solid State Communications Année : 1986

Thermal expansion of the organic conductor β-(BEDT-TTF)2I3

B. Hamzic
  • Fonction : Auteur
D. Schweitzer
  • Fonction : Auteur
H.J. Keller
  • Fonction : Auteur

Résumé

We report hiogh resolution thermal expansion measurements between 1.2 and 300 K along the c*-axis in the organic conductor β-(BEDT-TTF)2I3 where the superconducting properties are strongly dependent on the way the system is prepared in the pressure-temperature diagram. We clearly observed a strong anomaly at 172 K related to the structural phase transition and the resistivity anomalies reported by several groups. The temperature analysis in the low temperature regime is coherent with a phonon dominant contribution. Finally, the presence of small hysteresis in a large region around the transitions seem to indicate why both the pressure and the temperature cycling may stabilize small regions of the high-Tc phase of the system, as observed.

Dates et versions

hal-04899904 , version 1 (20-01-2025)

Identifiants

Citer

B. Hamzic, G. Creuzet, D. Schweitzer, H.J. Keller. Thermal expansion of the organic conductor β-(BEDT-TTF)2I3. Solid State Communications, 1986, 60 (9), pp.763-766. ⟨10.1016/0038-1098(86)90438-2⟩. ⟨hal-04899904⟩
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