Completely hydrostatic pressure effect of anisotropic resistivity in the 1-D organic conductor (TMTTF)2SbF6

Miho Itoi, Yasuyuki Ishii, Shuho Takekoshi, Haruhisa Kitano, Kazuyuki Matsubayashi, Yoshiya Uwatoko, Toshikazu Nakamura

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

The anisotropic resistivity of (TMTTF)2SbF6 under hydrostatic pressure was investigated up to ∼0.3 GPa using a helium gas pressure control system. The resistivity along the a axis shows a metallic behavior above a crossover temperature Tρ (∼220 K at ambient pressure) and an insulating behavior below Tρ. On the other hand, the temperature dependence of ρb′ and ρc was found to show a kink at a charge ordered temperature TCO. Interestingly, Tρ was increased with applying pressure while TCO was decreased with applying pressure. We discuss this unusual feature in terms of the pressure-temperature phase diagram in the (TMTCF)2X system.

Original languageEnglish
Pages (from-to)S594-S595
JournalPhysica C: Superconductivity and its applications
Volume470
Issue numberSUPPL.1
DOIs
Publication statusPublished - 2010 Dec 1

Keywords

  • Anisotropic resistivity
  • Helium gas pressure
  • Organic conductor

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Energy Engineering and Power Technology
  • Electrical and Electronic Engineering

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