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

doi:10.1016/j.physc.2009.11.138

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

Department of Physics

Research output: Contribution to journal › Article

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 T_ρ (∼220 K at ambient pressure) and an insulating behavior below T_ρ. On the other hand, the temperature dependence of ρb′ and ρc was found to show a kink at a charge ordered temperature TCO. Interestingly, T_ρ 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 language	English
Pages (from-to)	S594-S595
Journal	Physica C: Superconductivity and its applications
Volume	470
Issue number	SUPPL.1
DOIs	https://doi.org/10.1016/j.physc.2009.11.138
Publication status	Published - 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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Itoi, M., Ishii, Y., Takekoshi, S., Kitano, H., Matsubayashi, K., Uwatoko, Y., & Nakamura, T. (2010). Completely hydrostatic pressure effect of anisotropic resistivity in the 1-D organic conductor (TMTTF)₂SbF₆. Physica C: Superconductivity and its applications, 470(SUPPL.1), S594-S595. https://doi.org/10.1016/j.physc.2009.11.138

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, 01.12.2010, p. S594-S595.

Research output: Contribution to journal › Article

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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.",

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AU - Matsubayashi, Kazuyuki

AU - Uwatoko, Yoshiya

AU - Nakamura, Toshikazu

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