New Antiperovskite-Type Superconductor ZnN<I><SUB>y</SUB></I>Ni<SUB>3</SUB>

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Author(s)

    • Uehara Masatomo
    • Department of Physics, Faculty of Engineering, Yokohama National University
    • Uehara Akira
    • Department of Physics, Faculty of Engineering, Yokohama National University
    • Kozawa Katsuya
    • Department of Physics, Faculty of Engineering, Yokohama National University

Abstract

We have synthesized a new superconductor ZnN<I><SUB>y</SUB></I>Ni<SUB>3</SUB> with <I>T</I><SUB>c</SUB>∼3 K. The crystal structure is of the same antiperovskite-type as MgCNi<SUB>3</SUB> and CdCNi<SUB>3</SUB>. As far as we know, this is the third superconducting material in the Ni-based antiperovskite series and the first antiperovskite nitride superconducting material. For this new superconductor, the lower critical field <I>H</I><SUB>c1</SUB>(0), upper critical field <I>H</I><SUB>c2</SUB>(0), coherence length ξ(0), penetration depth λ(0), Ginzburg–Landau parameter κ(0), electronic specific heat coefficient γ, and Debye temperature Θ<SUB>D</SUB> have been experimentally determined.

Journal

  • Journal of the Physical Society of Japan

    Journal of the Physical Society of Japan 78(3), 033702-033702, 2009

    THE PHYSICAL SOCIETY OF JAPAN

Codes

  • NII Article ID (NAID)
    130005437337
  • Text Lang
    ENG
  • ISSN
    0031-9015
  • Data Source
    J-STAGE 
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