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Superconductivity at 43 K in an iron-based layered compound LaO1-xFxFeAs

Author

Listed:
  • Hiroki Takahashi

    (College of Humanities and Sciences, Nihon University, Sakurajosui, Setagaya-ku, Tokyo 156-8550, Japan)

  • Kazumi Igawa

    (College of Humanities and Sciences, Nihon University, Sakurajosui, Setagaya-ku, Tokyo 156-8550, Japan)

  • Kazunobu Arii

    (College of Humanities and Sciences, Nihon University, Sakurajosui, Setagaya-ku, Tokyo 156-8550, Japan)

  • Yoichi Kamihara

    (ERATO-SORST, JST, Frontier Research Center,)

  • Masahiro Hirano

    (ERATO-SORST, JST, Frontier Research Center,
    Frontier Research Center, Tokyo Institute of Technology, 4259 Nagatsuda, Midori-ku, Yokohama 226-8503, Japan)

  • Hideo Hosono

    (ERATO-SORST, JST, Frontier Research Center,
    Frontier Research Center, Tokyo Institute of Technology, 4259 Nagatsuda, Midori-ku, Yokohama 226-8503, Japan)

Abstract

Iron oxypnictides: The hottest thing in superconductivity The hunt for new materials exhibiting high-temperature superconductivity is on again. A complex iron-based oxide, containing lanthanum and arsenic, was recently found to exhibit a transition temperature (Tc) of about 26 K when doped with fluoride ions. That's respectable, but far from the heights achieved in copper oxide superconductors. Now Takahashi et al. show that the application of around 40,000 atmospheres of pressure can raise the Tc of this material substantially, to about 43 K. This is the highest tc yet reported for a non-copper-based material. What is more, this record is unlikely to last for long: the complexity of 'iron oxypnictides' of this type offers considerable flexibility for chemical modification, and we can expect to hear of yet higher transition temperatures. This paper — and the prospect of a new wave of superconductor fever — is the subject of an Editorial in the 24 April issue of Nature (452, 914; 2008).

Suggested Citation

  • Hiroki Takahashi & Kazumi Igawa & Kazunobu Arii & Yoichi Kamihara & Masahiro Hirano & Hideo Hosono, 2008. "Superconductivity at 43 K in an iron-based layered compound LaO1-xFxFeAs," Nature, Nature, vol. 453(7193), pages 376-378, May.
    • Handle: RePEc:nat:nature:v:453:y:2008:i:7193:d:10.1038_nature06972
    DOI: 10.1038/nature06972
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    Cited by:

    1. N. N. Wang & M. W. Yang & Z. Yang & K. Y. Chen & H. Zhang & Q. H. Zhang & Z. H. Zhu & Y. Uwatoko & L. Gu & X. L. Dong & J. P. Sun & K. J. Jin & J.-G. Cheng, 2022. "Pressure-induced monotonic enhancement of Tc to over 30 K in superconducting Pr0.82Sr0.18NiO2 thin films," Nature Communications, Nature, vol. 13(1), pages 1-8, December.
    2. Anghel, Dragoş-Victor, 2021. "Multiple solutions for the equilibrium populations in BCS superconductors," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 572(C).
    3. Cheng Hu & Jiajun Chen & Xianliang Zhou & Yufeng Xie & Xinyue Huang & Zhenghan Wu & Saiqun Ma & Zhichun Zhang & Kunqi Xu & Neng Wan & Yueheng Zhang & Qi Liang & Zhiwen Shi, 2024. "Collapse of carbon nanotubes due to local high-pressure from van der Waals encapsulation," Nature Communications, Nature, vol. 15(1), pages 1-8, December.

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