Effective ex-situ fabrication of F-doped SmFeAsO wire for high transport critical current density

Masaya Fujioka, Tomohiro Kota, Masanori Matoba, Toshinori Ozaki, Yoshihiko Takano, Hiroaki Kumakura, Yoichi Kamihara

Research output: Contribution to journalArticle

42 Citations (Scopus)

Abstract

We demonstrate the fabrication of superconducting SmFeAsO 1-xFx (Sm-1111) wires by using the ex-situ powder-in-tube technique. Sm-1111 powder and a binder composed of SmF3, samarium arsenide, and iron arsenide were used to synthesize the superconducting core. Although the F content of Sm-1111 is reduced in the process of ex-situ fabrication, the binder compensates by sufficiently supplementing the F content, thereby preventing a decrease in the superconducting transition temperature and a shrinkage of the superconducting volume fraction. Thus, in the superconducting Sm-1111 wire with the binder, the transport critical current density reaches the highest value of ̃4 kA/cm2 at 4.2 K.

Original languageEnglish
Article number063102
JournalApplied Physics Express
Volume4
Issue number6
DOIs
Publication statusPublished - 2011 Jun

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Binders
critical current
wire
Wire
current density
Fabrication
fabrication
samarium
shrinkage
Powders
Samarium
transition temperature
tubes
iron
Superconducting transition temperature
Volume fraction
Iron

ASJC Scopus subject areas

  • Engineering(all)
  • Physics and Astronomy(all)

Cite this

Effective ex-situ fabrication of F-doped SmFeAsO wire for high transport critical current density. / Fujioka, Masaya; Kota, Tomohiro; Matoba, Masanori; Ozaki, Toshinori; Takano, Yoshihiko; Kumakura, Hiroaki; Kamihara, Yoichi.

In: Applied Physics Express, Vol. 4, No. 6, 063102, 06.2011.

Research output: Contribution to journalArticle

Fujioka, Masaya ; Kota, Tomohiro ; Matoba, Masanori ; Ozaki, Toshinori ; Takano, Yoshihiko ; Kumakura, Hiroaki ; Kamihara, Yoichi. / Effective ex-situ fabrication of F-doped SmFeAsO wire for high transport critical current density. In: Applied Physics Express. 2011 ; Vol. 4, No. 6.
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