Observation of zero resistivity in K-doped picene

Kazuya Teranishi, Xuexia He, Yusuke Sakai, Masanari Izumi, Hidenori Goto, Ritsuko Eguchi, Yasuhiro Takabayashi, Takashi Kambe, Yoshihiro Kubozono

Research output: Contribution to journalArticle

23 Citations (Scopus)

Abstract

We report the observation of zero resistivity (ρ) in a hydrocarbon superconductor, and describe the temperature dependence of ρ in metal-doped hydrocarbons. The resistivity of K-doped picene (Kxpicene) has been recorded from pellet samples in a four-terminal measurement mode. A drop in ρ is observed below 7 K for K3.1picene and below 11 K for K 3.5picene, which clearly displays zero resistivity. The resistivity drop at 7 K is consistent with the superconducting critical temperature (T c) obtained from the magnetic susceptibility of the 7 K phase of K3picene, while the drop at 11 K is inconsistent with the T c's of both the 7 and 18 K phases of K3picene reported previously. The temperature dependence of ρ for both samples exhibits granular-metal-like behavior in the normal state.

Original languageEnglish
Article number060505
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume87
Issue number6
DOIs
Publication statusPublished - Feb 15 2013

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Hydrocarbons
electrical resistivity
Metals
hydrocarbons
Magnetic susceptibility
Temperature
temperature dependence
Superconducting materials
pellets
metals
critical temperature
magnetic permeability
picene

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Electronic, Optical and Magnetic Materials

Cite this

Observation of zero resistivity in K-doped picene. / Teranishi, Kazuya; He, Xuexia; Sakai, Yusuke; Izumi, Masanari; Goto, Hidenori; Eguchi, Ritsuko; Takabayashi, Yasuhiro; Kambe, Takashi; Kubozono, Yoshihiro.

In: Physical Review B - Condensed Matter and Materials Physics, Vol. 87, No. 6, 060505, 15.02.2013.

Research output: Contribution to journalArticle

Teranishi, Kazuya ; He, Xuexia ; Sakai, Yusuke ; Izumi, Masanari ; Goto, Hidenori ; Eguchi, Ritsuko ; Takabayashi, Yasuhiro ; Kambe, Takashi ; Kubozono, Yoshihiro. / Observation of zero resistivity in K-doped picene. In: Physical Review B - Condensed Matter and Materials Physics. 2013 ; Vol. 87, No. 6.
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AU - Eguchi, Ritsuko

AU - Takabayashi, Yasuhiro

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