Pressure effect of superconducting oxypnictide LaFeAO1-xF x and related materials

H. Takahashi, H. Okada, Yoichi Kamihara, S. Matsuishi, M. Hirano, H. Hosono, K. Matsubayashi, Y. Uwatoko

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Abstract

Pressure dependence on superconducting transition temperature (T c) has been investigated for iron-based superconductor LaFeAsO 1-xFx, SmFeAsO1-xFx and Ca(Fe 1-xCox)AsF. The Tc increases largely for LaFeAsO1-xFx with a small increase of pressure, and decreases with further compression. In SmFeAsO1-xFx the Tc decreases with increasing pressure. The increase of Tc in LaFeAsO1-xFx seems to be related to the suppression of magnetic ordering phase. Pressure-induced superconductivity was observed for these materials. The common features on 1111 type superconductors are discussed.

Original languageEnglish
Article number012037
JournalJournal of Physics: Conference Series
Volume215
DOIs
Publication statusPublished - 2010
Externally publishedYes

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ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Takahashi, H., Okada, H., Kamihara, Y., Matsuishi, S., Hirano, M., Hosono, H., Matsubayashi, K., & Uwatoko, Y. (2010). Pressure effect of superconducting oxypnictide LaFeAO1-xF x and related materials. Journal of Physics: Conference Series, 215, [012037]. https://doi.org/10.1088/1742-6596/215/1/012037