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Inter-element miscibility driven stabilization of ordered pseudo-binary alloy

Author

Listed:
  • Kenshi Matsumoto

    (Kyoto University, Gokasho, Uji)

  • Ryota Sato

    (Kyoto University, Gokasho, Uji)

  • Yasutomi Tatetsu

    (Meio University, Biimata, Nago)

  • Ryo Takahata

    (Kyoto University, Gokasho, Uji)

  • Seiji Yamazoe

    (Tokyo Metropolitan University)

  • Miho Yamauchi

    (Kyushu University)

  • Yuji Inagaki

    (Kyushu University)

  • Yoichi Horibe

    (Kyushu Institute of Technology)

  • Masaki Kudo

    (Kyushu University)

  • Takaaki Toriyama

    (Kyushu University)

  • Mitsunari Auchi

    (Kyushu University)

  • Mitsutaka Haruta

    (Kyoto University, Gokasho, Uji)

  • Hiroki Kurata

    (Kyoto University, Gokasho, Uji)

  • Toshiharu Teranishi

    (Kyoto University, Gokasho, Uji)

Abstract

An infinite number of crystal structures in a multicomponent alloy with a specific atomic ratio can be devised, although only thermodynamically-stable phases can be formed. Here, we experimentally show the first example of a layer-structured pseudo-binary alloy, theoretically called Z3-FePd3. This Z3 structure is achieved by adding a small amount of In, which is immiscible with Fe but miscible with Pd and consists of an alternate L10 (CuAu-type)-PdFePd trilayer and Pd–In ordered alloy monolayer along the c axis. First-principles calculations strongly support that the specific inter-element miscibility of In atoms stabilizes the thermodynamically-unstable Z3-FePd3 phase without significantly changing the original density of states of the Z3-FePd3 phase. Our results demonstrate that the specific inter-element miscibility can switch stable structures and manipulate the material nature with a slight composition change.

Suggested Citation

  • Kenshi Matsumoto & Ryota Sato & Yasutomi Tatetsu & Ryo Takahata & Seiji Yamazoe & Miho Yamauchi & Yuji Inagaki & Yoichi Horibe & Masaki Kudo & Takaaki Toriyama & Mitsunari Auchi & Mitsutaka Haruta & H, 2022. "Inter-element miscibility driven stabilization of ordered pseudo-binary alloy," Nature Communications, Nature, vol. 13(1), pages 1-7, December.
    • Handle: RePEc:nat:natcom:v:13:y:2022:i:1:d:10.1038_s41467-022-28710-0
    DOI: 10.1038/s41467-022-28710-0
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    References listed on IDEAS

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    1. Seiji Yamazoe & Shinjiro Takano & Wataru Kurashige & Toshihiko Yokoyama & Kiyofumi Nitta & Yuichi Negishi & Tatsuya Tsukuda, 2016. "Hierarchy of bond stiffnesses within icosahedral-based gold clusters protected by thiolates," Nature Communications, Nature, vol. 7(1), pages 1-7, April.
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