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
JournalPhysica C: Superconductivity and its Applications
Volume470
Issue numberSUPPL.1
DOIs
Publication statusPublished - 2010 Dec
Externally publishedYes

Fingerprint

Organic conductors
Pressure effects
Hydrostatic pressure
pressure effects
hydrostatic pressure
conductors
electrical resistivity
Temperature
Helium
Pressure control
Phase diagrams
gas pressure
temperature
crossovers
Gases
helium
phase diagrams
Control systems
temperature dependence

Keywords

  • Anisotropic resistivity
  • Helium gas pressure
  • Organic conductor

ASJC Scopus subject areas

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

Cite this

Completely hydrostatic pressure effect of anisotropic resistivity in the 1-D organic conductor (TMTTF)2SbF6. / Itoi, Miho; Ishii, Yasuyuki; Takekoshi, Shuho; Kitano, Haruhisa; Matsubayashi, Kazuyuki; Uwatoko, Yoshiya; Nakamura, Toshikazu.

In: Physica C: Superconductivity and its Applications, Vol. 470, No. SUPPL.1, 12.2010.

Research output: Contribution to journalArticle

Itoi, Miho ; Ishii, Yasuyuki ; Takekoshi, Shuho ; Kitano, Haruhisa ; Matsubayashi, Kazuyuki ; Uwatoko, Yoshiya ; Nakamura, Toshikazu. / Completely hydrostatic pressure effect of anisotropic resistivity in the 1-D organic conductor (TMTTF)2SbF6. In: Physica C: Superconductivity and its Applications. 2010 ; Vol. 470, No. SUPPL.1.
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