Nickel-based phosphide superconductor with infinite-layer structure, BaNi2P2

Takashi Mine, Hiroshi Yanagi, Toshio Kamiya, Yoichi Kamihara, Masahiro Hirano, Hideo Hosono

Research output: Contribution to journalArticlepeer-review

117 Citations (Scopus)


Analogous to cuprate high-Tc superconductors, a NiP-based compound system has several crystals in which the Ni-P layers have different stacking structures. Herein, the properties of BaNi2P2 are reported. BaNi2P2 has an infinite-layer structure, and shows a superconducting transition at ∼3 K. Moreover, it exhibits metallic conduction and Pauli paramagnetism in the temperature range of 4-300 K. Below 3 K, the resistivity sharply drops to zero, and the magnetic susceptibility becomes negative, while the volume fraction of the superconducting phase estimated from the diamagnetic susceptibility reaches ∼100 vol.% at 1.9 K. These observations substantiate that BaNi2P2 is a bulk superconductor.

Original languageEnglish
Pages (from-to)111-113
Number of pages3
JournalSolid State Communications
Issue number3-4
Publication statusPublished - 2008 Jul
Externally publishedYes


  • A. Superconductor
  • D. Electronic transport

ASJC Scopus subject areas

  • General Chemistry
  • Condensed Matter Physics
  • Materials Chemistry


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