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

Research output: Contribution to journalReview article

Abstract

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.

Original languageEnglish
Pages (from-to)27-34
Number of pages8
JournalReview of High Pressure Science and Technology/Koatsuryoku No Kagaku To Gijutsu
Volume26
Issue number1
DOIs
Publication statusPublished - 2016 Mar 30
Externally publishedYes

Keywords

  • Daphne7474
  • Electrical resistivity
  • High pressure
  • Iron-based superconductor
  • Piston cylinder
  • Pressure-induced superconductivity

ASJC Scopus subject areas

  • Chemistry(all)
  • Materials Science(all)
  • Condensed Matter Physics

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