Hydrostatic and nonhydrostatic pressure effects on the pressure-induced iron-based superconductor

Nobuyuki Kurita, Motoi Kimata, Hiroyuki Suzuki, Takehiko Matsumoto, Keizo Murata, Shinya Uji, Taichi Terashima

研究成果: Review article査読

抄録

In this article, we present an experimental setup for high-pressure resistivity measurements up to 3.2 GPa and its application to EuFe2As2, a mother compound of iron-based superconductors. Hydrostatic and nonhydrostatic pressures are produced by Daphne 7474 and Stycast 1266 pressure transmitting media, respectively, using a piston-cylinder-type NiCrAl/CuBe high-pressure apparatus. It is found that, in EuFe2As2, application of hydrostatic pressure is essential for the appearance of bulk superconductivity at Tc~30 K in the limited range of 2.5-3.0 GPa. Quality of pressure generated via Daphne 7373 and 7474 are also evaluated by use of two Manganin wires arranged parallel and vertical to the load axis.

本文言語English
ページ(範囲)27-34
ページ数8
ジャーナルReview of High Pressure Science and Technology/Koatsuryoku No Kagaku To Gijutsu
26
1
DOI
出版ステータスPublished - 2016 3 30
外部発表はい

ASJC Scopus subject areas

  • 化学 (全般)
  • 材料科学(全般)
  • 凝縮系物理学

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