論文

査読有り
2018年5月1日

Pressure induced superconductivity in very lightly doped LaFeAsO0.975F0.025

Physica B: Condensed Matter
  • K. Miyoshi
  • ,
  • K. Otsuka
  • ,
  • A. Shiota
  • ,
  • Y. Shimojo
  • ,
  • G. Motoyama
  • ,
  • K. Fujiwara
  • ,
  • H. Kitagawa
  • ,
  • S. Nishigori

536
開始ページ
827
終了ページ
829
記述言語
英語
掲載種別
研究論文(学術雑誌)
DOI
10.1016/j.physb.2017.09.080
出版者・発行元
Elsevier B.V.

We have investigated whether or not superconductivity is induced by the application of pressure in very lightly F-doped LaFeAsO1−xFx, which shows spin density wave (SDW) state at ambient pressure, through the measurements of DC magnetization and electrical resistivity under pressure using pulse current sintered (PCS) high density polycrystalline specimens. It has been confirmed that the specimens with x = 0.025 shows superconductivity with Tc dia∼15 K under pressure above ∼ 1.3 GPa. The pressure induced superconductivity can be explained by the lattice compression along c-axis, which enhances the electron doping from LaO layers to FeAs layers.

リンク情報
DOI
https://doi.org/10.1016/j.physb.2017.09.080
ID情報
  • DOI : 10.1016/j.physb.2017.09.080
  • ISSN : 0921-4526
  • SCOPUS ID : 85030546115

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