Nickel-based layered superconductor, LaNiOAs

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

Research output: Contribution to journalArticle

80 Citations (Scopus)

Abstract

Rietveld analysis of the powder X-ray diffraction of a new layered oxyarsenide, LaNiOAs, which was synthesized by solid-state reactions, revealed that LaNiOAs belongs to the tetragonal ZrCuSiAs-type structure (P4/nmm) and is composed of alternating stacks of La-O and Ni-As layers. The electrical and magnetic measurements demonstrated that LaNiOAs exhibits a superconducting transition at 2.4 K, and above this, LaNiOAs shows metallic conduction and Pauli paramagnetism. The diamagnetic susceptibility measured at 1.8 K corresponded to ∼20% of perfect diamagnetic susceptibility, substantiating that LaNiOAs is a bulk superconductor.

Original languageEnglish
Pages (from-to)2117-2120
Number of pages4
JournalJournal of Solid State Chemistry
Volume181
Issue number8
DOIs
Publication statusPublished - 2008 Aug
Externally publishedYes

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Paramagnetism
Rietveld analysis
Magnetic variables measurement
Nickel
Solid state reactions
X ray powder diffraction
Superconducting materials
nickel
magnetic permeability
paramagnetism
electrical measurement
magnetic measurement
solid state
conduction
diffraction
x rays

Keywords

  • LaNiOAs
  • Layered compound
  • Superconductor

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Inorganic Chemistry
  • Physical and Theoretical Chemistry
  • Ceramics and Composites
  • Electronic, Optical and Magnetic Materials
  • Materials Chemistry

Cite this

Watanabe, T., Yanagi, H., Kamihara, Y., Kamiya, T., Hirano, M., & Hosono, H. (2008). Nickel-based layered superconductor, LaNiOAs. Journal of Solid State Chemistry, 181(8), 2117-2120. https://doi.org/10.1016/j.jssc.2008.04.033

Nickel-based layered superconductor, LaNiOAs. / Watanabe, Takumi; Yanagi, Hiroshi; Kamihara, Yoichi; Kamiya, Toshio; Hirano, Masahiro; Hosono, Hideo.

In: Journal of Solid State Chemistry, Vol. 181, No. 8, 08.2008, p. 2117-2120.

Research output: Contribution to journalArticle

Watanabe, T, Yanagi, H, Kamihara, Y, Kamiya, T, Hirano, M & Hosono, H 2008, 'Nickel-based layered superconductor, LaNiOAs', Journal of Solid State Chemistry, vol. 181, no. 8, pp. 2117-2120. https://doi.org/10.1016/j.jssc.2008.04.033
Watanabe, Takumi ; Yanagi, Hiroshi ; Kamihara, Yoichi ; Kamiya, Toshio ; Hirano, Masahiro ; Hosono, Hideo. / Nickel-based layered superconductor, LaNiOAs. In: Journal of Solid State Chemistry. 2008 ; Vol. 181, No. 8. pp. 2117-2120.
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