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 (La(3+)O(2-))(+) and (Ni(2+)P(3-))(-). We found that the resulting LaNiOP shows a superconducting transition at approximately 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 approximately 40 vol % at 1.8 K, substantiating that LaNiOP is a bulk superconductor.

Keywords

ChemistryNickelCrystal structureSuperconductivityCrystallographyCondensed matter physicsOrganic chemistry

Affiliated Institutions

Related Publications

Bulk superconductivity at 36 K in<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msub><mml:mrow><mml:mi mathvariant="normal">La</mml:mi></mml:mrow><mml:mrow><mml:mn>1.8</mml:mn></mml:mrow></mml:msub></mml:mrow></mml:math><mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msub><mml:mrow><mml:mi mathvariant="normal">Sr</mml:mi></mml:mrow><mml:mrow><mml:mn>0.2</mml:mn></mml:mrow></mml:msub></mml:mrow></mml:math><mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msub><mml:mrow><mml:mi mathvariant="normal">CuO</mml:mi></mml:mrow><mml:mrow><mml:mn>4</mml:mn></mml:mrow></mml:msub></mml:mrow></mml:math>

R. J. Cava , R. B. van Dover , B. Batlogg +1 more

We report the results of resistivity and magnetic susceptibility measurements in ${\mathrm{La}}_{2\mathrm{\ensuremath{-}}\mathrm{x}}$${\mathrm{Sr}}_{\mathrm{x}}$${\mathrm{CuO}}_...

1987 Physical Review Letters 1033 citations

Publication Info

Year
2007
Type
article
Volume
46
Issue
19
Pages
7719-7721
Citations
281
Access
Closed

External Links

View on DOI.org

Social Impact

Altmetric
PlumX Metrics

Social media, news, blog, policy document mentions

Citation Metrics

281
OpenAlex

Cite This

Takumi Watanabe, Hiroshi Yanagi, Toshio Kamiya et al. (2007). Nickel-Based Oxyphosphide Superconductor with a Layered Crystal Structure, LaNiOP. Inorganic Chemistry , 46 (19) , 7719-7721. https://doi.org/10.1021/ic701200e

Identifiers

DOI
10.1021/ic701200e