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Journal of Low Temperature Physics

, Volume 142, Issue 3–4, pp 243–249 | Cite as

Pressure Effect on BDA-TTP Conductors

  • J. Yamada
  • K. Fujimoto
  • H. Akutsu
  • S. Nakatsuji
  • A. Miyazaki
  • M. Aimatsu
  • S. Kudo
  • T. Enoki
  • T. Isono
  • K. Kikuchi
Article
  • 38 Downloads

The pressure-induced conducting behavior of the charge-transfer salts (BDA-TTP)2X [BDA-TTP = 2,5-bis(1,3-dithian-2-ylidene)-1,3,4,6-tetrathiapentalene; X = ClO4·H2O, ClO4, BF4·H2O, BF4, and I3] has been investigated. With increasing pressure, the transition temperature to insulator observed in the ClO4·H2O, ClO4, BF4·H2O, and BF4 salts increases. On the other hand, the resistance of the I3 salt as a function of temperature at 10.0 kbar shows a drop attributable to a superconducting transition with an onset at 4.5 K. The superconducting transition temperature (Tc) can reach 8.2 K by applying a pressure of 10.3 kbar, but gradually decreases with further increases in the pressure.

PACS numbers

74.25.Fy 74.62.Fj 74.70.Kn 

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References

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Copyright information

© Springer Science+Business Media, Inc. 2007

Authors and Affiliations

  • J. Yamada
    • 1
  • K. Fujimoto
    • 1
  • H. Akutsu
    • 1
  • S. Nakatsuji
    • 1
  • A. Miyazaki
    • 2
  • M. Aimatsu
    • 2
  • S. Kudo
    • 2
  • T. Enoki
    • 2
  • T. Isono
    • 3
  • K. Kikuchi
    • 3
  1. 1.Department of Material Science, Graduate School of Material ScienceUniversity of HyogoHyogoJapan
  2. 2.Department of Chemistry, Graduate School of Science and EngineeringTokyo Institute of TechnologyTokyoJapan
  3. 3.Department of Chemistry, Graduate School of ScienceTokyo Metropolitan UniversityHachioji, TokyoJapan

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