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

doi:10.1088/1742-6596/215/1/012037

Pressure effect of superconducting oxypnictide LaFeAO_1-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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4 Citations (Scopus)

Abstract

Pressure dependence on superconducting transition temperature (T _c) has been investigated for iron-based superconductor LaFeAsO _1-xF_x, SmFeAsO_1-xF_x and Ca(Fe _1-xCo_x)AsF. The T_c increases largely for LaFeAsO_1-xF_x with a small increase of pressure, and decreases with further compression. In SmFeAsO_1-xF_x the T_c decreases with increasing pressure. The increase of T_c in LaFeAsO_1-xF_x 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 language	English
Article number	012037
Journal	Journal of Physics: Conference Series
Volume	215
DOIs	https://doi.org/10.1088/1742-6596/215/1/012037
Publication status	Published - 2010
Externally published	Yes

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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 LaFeAO_1-xF _x and related materials. Journal of Physics: Conference Series, 215, [012037]. https://doi.org/10.1088/1742-6596/215/1/012037

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AU - Takahashi, H.

AU - Okada, H.

AU - Kamihara, Yoichi

AU - Matsuishi, S.

AU - Hirano, M.

AU - Hosono, H.

AU - Matsubayashi, K.

AU - Uwatoko, Y.

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AB - 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.

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10.1088/1742-6596/215/1/012037