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arXiv · 1108.0029

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
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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.

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Satomi Kakiya, Kazutaka Kudo, Yoshihiro Nishikubo, Kenta Oku, Eiji Nishibori, Hiroshi Sawa, Takahisa Yamamoto, Toshio Nozaka, Minoru Nohara. 2011-08-19. Superconductivity at 38 K in Iron-Based Compound with Platinum-Arsenide Layers Ca10(Pt4As8)(Fe2-xPtxAs2)5. https://doi.org/10.1143/jpsj.80.093704

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