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Superconductivity in alkali-metal-doped picene

Author

Listed:
  • Ryoji Mitsuhashi

    (Research Laboratory for Surface Science,)

  • Yuta Suzuki

    (Department of Physics,)

  • Yusuke Yamanari

    (Department of Physics,)

  • Hiroki Mitamura

    (Research Laboratory for Surface Science,)

  • Takashi Kambe

    (Department of Physics,)

  • Naoshi Ikeda

    (Department of Physics,)

  • Hideki Okamoto

    (Okayama University, Okayama 700-8530, Japan
    Institute for Materials Chemistry and Engineering, Kyushu University)

  • Akihiko Fujiwara

    (Japan Advanced Institute of Science and Technology, Ishikawa, 923-1292, Japan)

  • Minoru Yamaji

    (Gunma University)

  • Naoko Kawasaki

    (Research Laboratory for Surface Science,)

  • Yutaka Maniwa

    (Tokyo Metropolitan University)

  • Yoshihiro Kubozono

    (Research Laboratory for Surface Science,)

Abstract

Superconductors go organic New high-temperature superconductors continue to arrive on the scene — the most recent noteworthy additions being the iron arsenides — but there have been no new organic superconductors the past decade. Now the discovery of superconductivity at temperatures up to 18 K is reported in crystals of a simple hydrocarbon molecule doped with potassium or rubidium. The basis for the new compound is picene (C22H14), a molecule consisting of five benzene rings sharing edges with one another, which crystallizes into an ordered molecular solid. Intercalation of the alkali metals into the crystal lattice induces metallic behaviour and superconductivity in what is normally a semiconducting material. The Tc of 18 K in potassium-doped picene is high for an organic superconductor — only alkali-metal-doped C60 achieves higher. And as picene is one of a large family of molecules based on fused benzene rings, other superconducting hydrocarbons may be awaiting discovery.

Suggested Citation

  • Ryoji Mitsuhashi & Yuta Suzuki & Yusuke Yamanari & Hiroki Mitamura & Takashi Kambe & Naoshi Ikeda & Hideki Okamoto & Akihiko Fujiwara & Minoru Yamaji & Naoko Kawasaki & Yutaka Maniwa & Yoshihiro Kuboz, 2010. "Superconductivity in alkali-metal-doped picene," Nature, Nature, vol. 464(7285), pages 76-79, March.
    • Handle: RePEc:nat:nature:v:464:y:2010:i:7285:d:10.1038_nature08859
    DOI: 10.1038/nature08859
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    Cited by:

    1. Zhongxin Chen & Wenqiang Li & Md Abdus Sabuj & Yuan Li & Weiya Zhu & Miao Zeng & Chandra S. Sarap & Md Masrul Huda & Xianfeng Qiao & Xiaobin Peng & Dongge Ma & Yuguang Ma & Neeraj Rai & Fei Huang, 2021. "Evolution of the electronic structure in open-shell donor-acceptor organic semiconductors," Nature Communications, Nature, vol. 12(1), pages 1-10, December.

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