Pressure effects on superconducting and structural properties for nickel-based superconductors LaNiXO (X = P and As)

Hironari Okada; Yuki Takahashi; Kazumi Igawa; Kazunobu Arii; Hiroki Takahashi; Takumi Watanabe; Hiroshi Yanagi; Yoichi Kamihara; Toshio Kamiya; Masahiro Hirano; Hideo Hosono; Satoshi Nakano; Takumi Kikegawa

doi:10.1143/JPSJS.77SC.119

Pressure effects on superconducting and structural properties for nickel-based superconductors LaNiXO (X = P and As)

Hironari Okada, Yuki Takahashi, Kazumi Igawa, Kazunobu Arii, Hiroki Takahashi, Takumi Watanabe, Hiroshi Yanagi, Yoichi Kamihara, Toshio Kamiya, Masahiro Hirano, Hideo Hosono, Satoshi Nakano, Takumi Kikegawa

Research output: Contribution to journal › Article › peer-review

7 Citations (Scopus)

Abstract

We have performed electrical resistivity and powder X-ray diffraction measurements under high pressures for nickel-based superconducors LaNiXO (X = P and As). Superconducting transition temperatures T_c of X = P and As increase to 3.78 K at 1.67 GPa and 3.14 K at 0.75 GPa, respectively. A compressibility of the lattice parameter c of LaNiPO is 1.5 times larger than that of the lattice parameter a, resulting in a linear decrease of an axial ratio c/a.

Original language	English
Pages (from-to)	119-120
Number of pages	2
Journal	Journal of the Physical Society of Japan
Volume	77
Issue number	SUPPL. C
DOIs	https://doi.org/10.1143/JPSJS.77SC.119
Publication status	Published - 2008
Externally published	Yes

Keywords

Bulk modulus
Electrical resistivity
High pressure
Oxypnictide
Superconductivity

ASJC Scopus subject areas

Physics and Astronomy(all)

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10.1143/JPSJS.77SC.119

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Okada, H., Takahashi, Y., Igawa, K., Arii, K., Takahashi, H., Watanabe, T., Yanagi, H., Kamihara, Y., Kamiya, T., Hirano, M., Hosono, H., Nakano, S., & Kikegawa, T. (2008). Pressure effects on superconducting and structural properties for nickel-based superconductors LaNiXO (X = P and As). Journal of the Physical Society of Japan, 77(SUPPL. C), 119-120. https://doi.org/10.1143/JPSJS.77SC.119

Okada, H, Takahashi, Y, Igawa, K, Arii, K, Takahashi, H, Watanabe, T, Yanagi, H, Kamihara, Y, Kamiya, T, Hirano, M, Hosono, H, Nakano, S & Kikegawa, T 2008, 'Pressure effects on superconducting and structural properties for nickel-based superconductors LaNiXO (X = P and As)', Journal of the Physical Society of Japan, vol. 77, no. SUPPL. C, pp. 119-120. https://doi.org/10.1143/JPSJS.77SC.119

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abstract = "We have performed electrical resistivity and powder X-ray diffraction measurements under high pressures for nickel-based superconducors LaNiXO (X = P and As). Superconducting transition temperatures Tc of X = P and As increase to 3.78 K at 1.67 GPa and 3.14 K at 0.75 GPa, respectively. A compressibility of the lattice parameter c of LaNiPO is 1.5 times larger than that of the lattice parameter a, resulting in a linear decrease of an axial ratio c/a.",

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author = "Hironari Okada and Yuki Takahashi and Kazumi Igawa and Kazunobu Arii and Hiroki Takahashi and Takumi Watanabe and Hiroshi Yanagi and Yoichi Kamihara and Toshio Kamiya and Masahiro Hirano and Hideo Hosono and Satoshi Nakano and Takumi Kikegawa",

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T1 - Pressure effects on superconducting and structural properties for nickel-based superconductors LaNiXO (X = P and As)

AU - Okada, Hironari

AU - Takahashi, Yuki

AU - Igawa, Kazumi

AU - Arii, Kazunobu

AU - Takahashi, Hiroki

AU - Watanabe, Takumi

AU - Yanagi, Hiroshi

AU - Kamihara, Yoichi

AU - Kamiya, Toshio

AU - Hirano, Masahiro

AU - Hosono, Hideo

AU - Nakano, Satoshi

AU - Kikegawa, Takumi

PY - 2008

Y1 - 2008

N2 - We have performed electrical resistivity and powder X-ray diffraction measurements under high pressures for nickel-based superconducors LaNiXO (X = P and As). Superconducting transition temperatures Tc of X = P and As increase to 3.78 K at 1.67 GPa and 3.14 K at 0.75 GPa, respectively. A compressibility of the lattice parameter c of LaNiPO is 1.5 times larger than that of the lattice parameter a, resulting in a linear decrease of an axial ratio c/a.

AB - We have performed electrical resistivity and powder X-ray diffraction measurements under high pressures for nickel-based superconducors LaNiXO (X = P and As). Superconducting transition temperatures Tc of X = P and As increase to 3.78 K at 1.67 GPa and 3.14 K at 0.75 GPa, respectively. A compressibility of the lattice parameter c of LaNiPO is 1.5 times larger than that of the lattice parameter a, resulting in a linear decrease of an axial ratio c/a.

KW - Bulk modulus

KW - Electrical resistivity

KW - High pressure

KW - Oxypnictide

KW - Superconductivity

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JO - Journal of the Physical Society of Japan

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Pressure effects on superconducting and structural properties for nickel-based superconductors LaNiXO (X = P and As)

Abstract

Keywords

ASJC Scopus subject areas

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