Preparation of Fe-oxypnictides superconductors: Solid-state sintering, high pressure synthesis and flux method

Sung Wng Kim, Yoichi Kamihara, Seok Gyu Yoon, Hyuk Su Han, Takatoshi Nomura, Satoru Matsuishi, Koichi Nakao, Keiichi Tanabe, Masahiro Hirano, Hideo Hosono

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

We have fabricated the F-doped LaFeAsO superconductors via three fabrication processes; (1) solid-state sintering, (2) high pressure (HP) synthesis and (3) crystallization from flux solution. Samples prepared by these processes have unique features depending on the process such as a large volume and uniformity of the sintered pellet, variety of the compositions in the high pressured pellet and potential of growing large single crystal using fluxes. In particular, the HP synthetic process has a unique advantage that the compositional variations in the compounds were realized by a large temperature gradient within a short reaction time.

Original languageEnglish
Pages (from-to)23-26
Number of pages4
JournalJournal of the Physical Society of Japan
Volume77
Issue numberSUPPL. C
DOIs
Publication statusPublished - 2008 Jan 1

Keywords

  • Fe-oxypnictide
  • Flux method
  • High pressure
  • LaFeAsO
  • Sintering
  • Superconductor

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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    Kim, S. W., Kamihara, Y., Yoon, S. G., Han, H. S., Nomura, T., Matsuishi, S., Nakao, K., Tanabe, K., Hirano, M., & Hosono, H. (2008). Preparation of Fe-oxypnictides superconductors: Solid-state sintering, high pressure synthesis and flux method. Journal of the Physical Society of Japan, 77(SUPPL. C), 23-26. https://doi.org/10.1143/jpsjs.77sc.23