Please use this identifier to cite or link to this item: http://dx.doi.org/10.18419/opus-7600
Keller, Heimo J.
|Title:||Thermal expansion of the organic conductor β-(BEDT-TTF)2I3|
|metadata.ubs.publikation.source:||Solid state communications 60 (1986), S. 763-766. URL http://dx.doi.org./10.1016/0038-1098(86)90438-2|
|Abstract:||We report high 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.|
|Appears in Collections:||15 Fakultätsübergreifend / Sonstige Einrichtung|
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