Superconductivity in alkali-metal-doped picene

Ryoji Mitsuhashi, Yuta Suzuki, Yusuke Yamanari, Hiroki Mitamura, Takashi Kambe, Naoshi Ikeda, Hideki Okamoto, Akihiko Fujiwara, Minoru Yamaji, Naoko Kawasaki, Yutaka Maniwa, Yoshihiro Kubozono

Research output: Contribution to journalArticle

336 Citations (Scopus)

Abstract

Efforts to identify and develop new superconducting materials continue apace, motivated by both fundamental science and the prospects for application. For example, several new superconducting material systems have been developed in the recent past, including calcium-intercalated graphite compounds, boron-doped diamond and-most prominentlyg-iron arsenides such as LaO1-x F x FeAs (ref. 3). In the case of organic superconductors, however, no new material system with a high superconducting transition temperature (Tc) has been discovered in the past decade. Here we report that intercalating an alkali metal into picene, a wide-bandgap semiconducting solid hydrocarbon, produces metallic behaviour and superconductivity. Solid potassium-intercalated picene (Kx picene) shows Tc values of 7 K and 18 K, depending on the metal content. The drop of magnetization in K x picene solids at the transition temperature is sharp (c of 18 K is comparable to that of K-intercalated C60 (ref. 4). This discovery of superconductivity in K x picene shows that organic hydrocarbons are promising candidates for improved Tc values.

Original languageEnglish
Pages (from-to)76-79
Number of pages4
JournalNature
Volume464
Issue number7285
DOIs
Publication statusPublished - 2010

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Alkali Metals
Transition Temperature
Hydrocarbons
Boron Compounds
Diamond
Graphite
Potassium
Iron
Metals
Superconductivity
picene
Calcium

ASJC Scopus subject areas

  • General

Cite this

Mitsuhashi, R., Suzuki, Y., Yamanari, Y., Mitamura, H., Kambe, T., Ikeda, N., ... Kubozono, Y. (2010). Superconductivity in alkali-metal-doped picene. Nature, 464(7285), 76-79. https://doi.org/10.1038/nature08859

Superconductivity in alkali-metal-doped picene. / Mitsuhashi, Ryoji; Suzuki, Yuta; Yamanari, Yusuke; Mitamura, Hiroki; Kambe, Takashi; Ikeda, Naoshi; Okamoto, Hideki; Fujiwara, Akihiko; Yamaji, Minoru; Kawasaki, Naoko; Maniwa, Yutaka; Kubozono, Yoshihiro.

In: Nature, Vol. 464, No. 7285, 2010, p. 76-79.

Research output: Contribution to journalArticle

Mitsuhashi, R, Suzuki, Y, Yamanari, Y, Mitamura, H, Kambe, T, Ikeda, N, Okamoto, H, Fujiwara, A, Yamaji, M, Kawasaki, N, Maniwa, Y & Kubozono, Y 2010, 'Superconductivity in alkali-metal-doped picene', Nature, vol. 464, no. 7285, pp. 76-79. https://doi.org/10.1038/nature08859
Mitsuhashi R, Suzuki Y, Yamanari Y, Mitamura H, Kambe T, Ikeda N et al. Superconductivity in alkali-metal-doped picene. Nature. 2010;464(7285):76-79. https://doi.org/10.1038/nature08859
Mitsuhashi, Ryoji ; Suzuki, Yuta ; Yamanari, Yusuke ; Mitamura, Hiroki ; Kambe, Takashi ; Ikeda, Naoshi ; Okamoto, Hideki ; Fujiwara, Akihiko ; Yamaji, Minoru ; Kawasaki, Naoko ; Maniwa, Yutaka ; Kubozono, Yoshihiro. / Superconductivity in alkali-metal-doped picene. In: Nature. 2010 ; Vol. 464, No. 7285. pp. 76-79.
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