Anomalous He-gas high-pressure studies on superconducting LaO 1-xFxFeAs

W. Bi; H. B. Banks; J. S. Schilling; H. Takahashi; H. Okada; Y. Kamihara; M. Hirano; H. Hosono

doi:10.1088/1367-2630/12/2/023005

Anomalous He-gas high-pressure studies on superconducting LaO _1-xF_xFeAs

W. Bi
, H. B. Banks
, J. S. Schilling
, H. Takahashi
, H. Okada
, Y. Kamihara
, M. Hirano
, H. Hosono

研究成果: Article › 査読

6 被引用数 (Scopus)

抄録

Ac susceptibility measurements have been carried out on superconducting LaO_1-xF_xFeAs for x = 0.07 and 0.14 under He-gas pressures to ∼0.8 GPa. Not only do the measured values of dT_c/dP differ substantially from those obtained in previous studies using other pressure media, but also the T_c(P) dependences observed depend on the detailed pressure/temperature history of the sample. A sizeable sensitivity of T _c(P) to shear stresses provides a possible explanation.

本文言語	English
論文番号	023005
ジャーナル	New Journal of Physics
巻	12
DOI	https://doi.org/10.1088/1367-2630/12/2/023005
出版ステータス	Published - 2010 2月 9
外部発表	はい

ASJC Scopus subject areas

物理学および天文学一般

文献へのアクセス

10.1088/1367-2630/12/2/023005

他のファイルとリンク

引用スタイル

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AU - Bi, W.

AU - Banks, H. B.

AU - Schilling, J. S.

AU - Takahashi, H.

AU - Okada, H.

AU - Kamihara, Y.

AU - Hirano, M.

AU - Hosono, H.

PY - 2010/2/9

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AB - Ac susceptibility measurements have been carried out on superconducting LaO1-xFxFeAs for x = 0.07 and 0.14 under He-gas pressures to ∼0.8 GPa. Not only do the measured values of dTc/dP differ substantially from those obtained in previous studies using other pressure media, but also the Tc(P) dependences observed depend on the detailed pressure/temperature history of the sample. A sizeable sensitivity of T c(P) to shear stresses provides a possible explanation.

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