Superconductivity at 38 K in iron-based compound with platinum-arsenide layers Ca10(Pt4As8)(Fe2-xPt xAs2)5

Satomi Kakiya, Kazutaka Kudo, Yoshihiro Nishikubo, Kenta Oku, Eiji Nishibori, Hiroshi Sawa, Takahisa Yamamoto, Toshio Nozaka, Minoru Nohara

Research output: Contribution to journalArticle

95 Citations (Scopus)

Abstract

We report superconductivity in novel iron-based compounds Ca 10(PtnAs8)(Fe2-xPt xAs2)5 with n = 3 and 4. Both compounds crystallize in triclinic structures (space group PĪ), in which Fe 2As2 layers alternate with PtnAs8 spacer layers. Superconductivity with a transition temperature of 38 K is observed in the n = 4 compound with a Pt content of x ∼ 0.36 in the Fe2As2 layers. The compound with n - 3 exhibits superconductivity at 13 K.

Original languageEnglish
Article number093704
JournalJournal of the Physical Society of Japan
Volume80
Issue number9
DOIs
Publication statusPublished - Sep 2011

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platinum
superconductivity
iron
spacers
transition temperature

Keywords

  • Ca-Fe-Pt-As
  • Iron-based superconductors

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Superconductivity at 38 K in iron-based compound with platinum-arsenide layers Ca10(Pt4As8)(Fe2-xPt xAs2)5. / Kakiya, Satomi; Kudo, Kazutaka; Nishikubo, Yoshihiro; Oku, Kenta; Nishibori, Eiji; Sawa, Hiroshi; Yamamoto, Takahisa; Nozaka, Toshio; Nohara, Minoru.

In: Journal of the Physical Society of Japan, Vol. 80, No. 9, 093704, 09.2011.

Research output: Contribution to journalArticle

Kakiya, Satomi ; Kudo, Kazutaka ; Nishikubo, Yoshihiro ; Oku, Kenta ; Nishibori, Eiji ; Sawa, Hiroshi ; Yamamoto, Takahisa ; Nozaka, Toshio ; Nohara, Minoru. / Superconductivity at 38 K in iron-based compound with platinum-arsenide layers Ca10(Pt4As8)(Fe2-xPt xAs2)5. In: Journal of the Physical Society of Japan. 2011 ; Vol. 80, No. 9.
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AU - Oku, Kenta

AU - Nishibori, Eiji

AU - Sawa, Hiroshi

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