Superconductivity at 38 K in Iron-Based Compound with Platinum-Arsenide Layers Ca10(Pt4As8)(Fe2-xPtxAs2)5

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

doi:10.1143/JPSJ.80.093704

Superconductivity at 38 K in Iron-Based Compound with Platinum-Arsenide Layers Ca10(Pt4As8)(Fe2-xPtxAs2)5

Superconductivity 2011-08-22 v2

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

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Abstract

We report superconductivity in novel iron-based compounds Ca10(PtnAs8)(Fe2-xPtxAs2)5 with n = 3 and 4. Both compounds crystallize in triclinic structures (space group P-1), in which Fe2As2 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.

Keywords

superconductivity iron-based compound platinum-arsenide layers Ca10(Pt4As8)(Fe2-xPtxAs2)5 transition temperature

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@article{arxiv.1108.0029,
  title  = {Superconductivity at 38 K in Iron-Based Compound with Platinum-Arsenide Layers Ca10(Pt4As8)(Fe2-xPtxAs2)5},
  author = {Satomi Kakiya and Kazutaka Kudo and Yoshihiro Nishikubo and Kenta Oku and Eiji Nishibori and Hiroshi Sawa and Takahisa Yamamoto and Toshio Nozaka and Minoru Nohara},
  journal= {arXiv preprint arXiv:1108.0029},
  year   = {2011}
}

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OPEN SELECT article, 11 pages, 5 figures, 2 tables

Superconductivity at 38 K in Iron-Based Compound with Platinum-Arsenide Layers Ca10(Pt4As8)(Fe2-xPtxAs2)5

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