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Ultra high pressure application to organic conductors

  • Poster Session I: Magnetic Resonance, Biology, Organic Thin Films And Devices, Molecular Materials And Crystal Engineering, Synthesis Of New Molecules
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Abstract

Under pressures as high as 20 GPa at room temperature the electronic and structural properties of organic conductors were measured to search for interesting pressure regimes where novel electronic states were expected. Thermopower, two-probe electrical resistance and contraction of sample’s volume were measured on the organic conductors: ϑ-(BEDT-TTF)2CsZn(SCN)4, α-(BEDT-TTF)2I3, (BEDT-TTF)2PF6 and (BEDT-TTF)-TCNQ. All the materials exhibited a positive thermopower of the order of 10 µV/K. At about 4–7 GPa (crossover pressure Px) sharp changes were found in the pressure dependence of electronic and mechanical properties of all the substances under consideration related probably to the structural changes under pressure.

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Authors and Affiliations

  1. Department of Basic Science, University of Tokyo, Komaba 3-8-1, Meguro, 153-8902, Tokyo, Japan

    S. Kagoshima, R. Kondo & N. Matsushita

  2. High Pressure Group, Institute of Metal Physics, Russian Academy of Sciences, Urals Division, 18 S. Kovalevskaya Str. GSP-170, 620041, Yekaterinburg, Russia

    S. V. Ovsyannikov, N. A. Shaidarova & V. V. Shchennikov

Authors
  1. S. Kagoshima
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  2. R. Kondo
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  3. N. Matsushita
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  4. S. V. Ovsyannikov
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  5. N. A. Shaidarova
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  6. V. V. Shchennikov
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Kagoshima, S., Kondo, R., Matsushita, N. et al. Ultra high pressure application to organic conductors. J Low Temp Phys 142, 409–412 (2006). https://doi.org/10.1007/BF02679532

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  • DOI: https://doi.org/10.1007/BF02679532

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