Nickel-based oxyphosphide superconductor with a layered crystal structure, LaNiOP

Takumi Watanabe, Hiroshi Yanagi, Toshio Kamiya, Yoichi Kamihara, Hidenori Hiramatsu, Masahiro Hirano, Hideo Hosono

Research output: Contribution to journalArticle

236 Citations (Scopus)

Abstract

A layered oxyphosphide, LaNiOP, was synthesized by solid-state reactions. This crystal was confirmed to have a layered structure composed of an alternating stack of (La3+O2-)+ and (Ni 2+P3-)-. We found that the resulting LaNiOP shows a superconducting transition at ∼3 K. This material exhibited metallic conduction and Pauli paramagnetism in the temperature range of 4-300 K. The resistivity sharply dropped to zero and the magnetic susceptibility became negative at <4 K, indicating that a superconducting transition occurs. The volume fraction of the superconducting phase estimated from the diamagnetic susceptibility reached ∼40 vol % at 1.8 K, substantiating that LaNiOP is a bulk superconductor.

Original languageEnglish
Pages (from-to)7719-7721
Number of pages3
JournalInorganic Chemistry
Volume46
Issue number19
DOIs
Publication statusPublished - 2007 Sep 17
Externally publishedYes

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Paramagnetism
Nickel
Solid state reactions
Magnetic susceptibility
Superconducting materials
Volume fraction
Crystal structure
nickel
magnetic permeability
Crystals
crystal structure
paramagnetism
solid state
conduction
Temperature
electrical resistivity
crystals
temperature

ASJC Scopus subject areas

  • Inorganic Chemistry

Cite this

Watanabe, T., Yanagi, H., Kamiya, T., Kamihara, Y., Hiramatsu, H., Hirano, M., & Hosono, H. (2007). Nickel-based oxyphosphide superconductor with a layered crystal structure, LaNiOP. Inorganic Chemistry, 46(19), 7719-7721. https://doi.org/10.1021/ic701200e

Nickel-based oxyphosphide superconductor with a layered crystal structure, LaNiOP. / Watanabe, Takumi; Yanagi, Hiroshi; Kamiya, Toshio; Kamihara, Yoichi; Hiramatsu, Hidenori; Hirano, Masahiro; Hosono, Hideo.

In: Inorganic Chemistry, Vol. 46, No. 19, 17.09.2007, p. 7719-7721.

Research output: Contribution to journalArticle

Watanabe, T, Yanagi, H, Kamiya, T, Kamihara, Y, Hiramatsu, H, Hirano, M & Hosono, H 2007, 'Nickel-based oxyphosphide superconductor with a layered crystal structure, LaNiOP', Inorganic Chemistry, vol. 46, no. 19, pp. 7719-7721. https://doi.org/10.1021/ic701200e
Watanabe, Takumi ; Yanagi, Hiroshi ; Kamiya, Toshio ; Kamihara, Yoichi ; Hiramatsu, Hidenori ; Hirano, Masahiro ; Hosono, Hideo. / Nickel-based oxyphosphide superconductor with a layered crystal structure, LaNiOP. In: Inorganic Chemistry. 2007 ; Vol. 46, No. 19. pp. 7719-7721.
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