Fluctuation of the charge density wave in TTF–TCNQ under high pressure

Fluctuation of the charge density wave in TTF–TCNQ under high pressure

Temperature dependence of the resistivity of TTF–TCNQ along the b-(1D)- and a-axes was studied under hydrostatic pressure up to 8GPa. A striking contrast was seen between the b-(1D)- and a-axes in the power-law dependence of resistivity ρ=ρ0Tα in the metallic region as well as the activation energy...

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Veröffentlicht in:Physica. B, Condensed matter Condensed matter, 2009-03, Vol.404 (3-4), p.373-375
Hauptverfasser: Murata, Keizo, Weng, Yufeng, Seno, Yuki, Rani Tamilselvan, Natarajan, Kobayashi, Kensuke, Arumugam, Sonachalam, Takashima, Yusaku, Yoshino, Harukazu, Kato, Reizo
Format: Artikel
Sprache:eng
Schlagworte:
Charge density wave (CDW)
Charge-density-wave systems
Collective effects
Condensed matter: electronic structure, electrical, magnetic, and optical properties
Electron correlation
Electron states
Exact sciences and technology
Fluctuation
Physics
TTF–TCNQ
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Zusammenfassung:Temperature dependence of the resistivity of TTF–TCNQ along the b-(1D)- and a-axes was studied under hydrostatic pressure up to 8GPa. A striking contrast was seen between the b-(1D)- and a-axes in the power-law dependence of resistivity ρ=ρ0Tα in the metallic region as well as the activation energy in the charge density wave (CDW) insulating state. We note that the careful terminal configuration is essentially important to obtain these properties.
ISSN:0921-4526
1873-2135
DOI:10.1016/j.physb.2008.11.024