Calorimetric Study of Metal-Insulator Transition in (DIMET)2I3.

  • Saito Kazuya
    Research Center for Molecular Thermodynamics, Graduate School of Science, Osaka University,<BR> Toyonaka, Osaka 560-0043
  • Sato Akane
    Research Center for Molecular Thermodynamics, Graduate School of Science, Osaka University,<BR> Toyonaka, Osaka 560-0043
  • Kikuchi Koichi
    Department of Chemistry, Graduate School of Science, Tokyo Metropolitan University,<BR> Hachioji, Tokyo 192-0364
  • Nishikawa Hiroyuki
    Department of Chemistry, Graduate School of Science, Tokyo Metropolitan University,<BR> Hachioji, Tokyo 192-0364
  • Ikemoto Isao
    Department of Chemistry, Graduate School of Science, Tokyo Metropolitan University,<BR> Hachioji, Tokyo 192-0364
  • Sorai Michio
    Research Center for Molecular Thermodynamics, Graduate School of Science, Osaka University,<BR> Toyonaka, Osaka 560-0043

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Other Title
  • Calorimetric Study of Metal-Insulator Transition in (DIMET)<sub><b>2</b></sub>I<sub><b>3</b></sub><sup><b>1</b>)</sup>

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Heat capacity of a quasi-one-dimensional organic conductor (DIMET)2I3 has been measured by chopped-light ac calorimetry below room temperature. An anomaly due to a metal-insulator transition has been clearly detected around 40 K. The magnitude of the anomaly is analyzed through comparison with other Q1D conductors. A possible SDW mechanism is suggested.

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