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

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

doi:10.1021/ic701200e

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 journal › Article › peer-review

261 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⁺O^2-)⁺ and (Ni ²⁺P^3-)^-. 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 language	English
Pages (from-to)	7719-7721
Number of pages	3
Journal	Inorganic Chemistry
Volume	46
Issue number	19
DOIs	https://doi.org/10.1021/ic701200e
Publication status	Published - 2007 Sept 17
Externally published	Yes

ASJC Scopus subject areas

Physical and Theoretical Chemistry
Inorganic Chemistry

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10.1021/ic701200e

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

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.",

author = "Takumi Watanabe and Hiroshi Yanagi and Toshio Kamiya and Yoichi Kamihara and Hidenori Hiramatsu and Masahiro Hirano and Hideo Hosono",

note = "Funding Information: Manuscript received March 27, 2008; revised August 13, 2008, November 3, 2008, and December 12, 2008. First published March 24, 2009; current version published July 17, 2009. This work was supported in part by the National Basic Research Program of China under Grant 2004CB318100, by the National Natural Science Foundation of China under Grant 60736018 and Grant 60723005, by the National Laboratory of Pattern Recognition under Grant 2008NLPRZY-2, by the Nature Science Foundation of China under Grant 60605014 and Grant 60875021, and by the National 863 Plan projects under Grant 2009AA01Z318. This paper was recommended by Associate Editor H. Zhang.",

year = "2007",

month = sep,

day = "17",

doi = "10.1021/ic701200e",

language = "English",

volume = "46",

pages = "7719--7721",

journal = "Inorganic Chemistry",

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publisher = "American Chemical Society",

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T1 - Nickel-based oxyphosphide superconductor with a layered crystal structure, LaNiOP

AU - Watanabe, Takumi

AU - Yanagi, Hiroshi

AU - Kamiya, Toshio

AU - Kamihara, Yoichi

AU - Hiramatsu, Hidenori

AU - Hirano, Masahiro

AU - Hosono, Hideo

N1 - Funding Information: Manuscript received March 27, 2008; revised August 13, 2008, November 3, 2008, and December 12, 2008. First published March 24, 2009; current version published July 17, 2009. This work was supported in part by the National Basic Research Program of China under Grant 2004CB318100, by the National Natural Science Foundation of China under Grant 60736018 and Grant 60723005, by the National Laboratory of Pattern Recognition under Grant 2008NLPRZY-2, by the Nature Science Foundation of China under Grant 60605014 and Grant 60875021, and by the National 863 Plan projects under Grant 2009AA01Z318. This paper was recommended by Associate Editor H. Zhang.

PY - 2007/9/17

Y1 - 2007/9/17

N2 - 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.

AB - 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.

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EP - 7721

JO - Inorganic Chemistry

JF - Inorganic Chemistry

IS - 19

ER -

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

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