Single crystal growth and anisotropic superconducting property of PuRhGa5

Yoshinori Haga; Dai Aoki; Tatsuma D. Matsuda; Kunihisa Nakajima; Yasuo Arai; Etsuji Yamamoto; Akio Nakamura; Yoshiya Homma; Yoshinobu Shiokawa; Yoshichika Onuki

doi:10.1143/JPSJ.74.1698

Single crystal growth and anisotropic superconducting property of PuRhGa₅

Yoshinori Haga, Dai Aoki, Tatsuma D. Matsuda, Kunihisa Nakajima, Yasuo Arai, Etsuji Yamamoto, Akio Nakamura, Yoshiya Homma, Yoshinobu Shiokawa, Yoshichika Onuki

IMR - Materials Processing and Characterization Division

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46 Citations (Scopus)

Abstract

We grew a single crystal of the transuranium superconductor PuRhGa ₅ with the tetragonal structure by the Ga-flux method, and measured its magnetic susceptibility, magnetization and AC susceptibility. The magnetic susceptibility is found to reveal no distinct anisotropy between H ∥ [100] and [001]. The upper critical field H_c2 for superconductivity is, however, highly anisotropic: H_c2(0) = 270 kOe for H ∥ [100] and 150 kOe for H ∥ [001]. The angular dependence of H_c2 is well fitted by the anisotropic mass model, reflecting a quasi-two-dimensional electronic state. The Maki parameter κ₂ and thermodynamical critical field H_c are approximately determined as κ₂ ≃ 50 and H_c(0) = 4.7 kOe from the equilibrium magnetization curve.

Original language	English
Pages (from-to)	1698-1701
Number of pages	4
Journal	Journal of the Physical Society of Japan
Volume	74
Issue number	6
DOIs	https://doi.org/10.1143/JPSJ.74.1698
Publication status	Published - 2005 Jun

Keywords

Heavy fermion superconductor
Magnetization
PuRhGa

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10.1143/JPSJ.74.1698

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title = "Single crystal growth and anisotropic superconducting property of PuRhGa5",

abstract = "We grew a single crystal of the transuranium superconductor PuRhGa 5 with the tetragonal structure by the Ga-flux method, and measured its magnetic susceptibility, magnetization and AC susceptibility. The magnetic susceptibility is found to reveal no distinct anisotropy between H ∥ [100] and [001]. The upper critical field Hc2 for superconductivity is, however, highly anisotropic: Hc2(0) = 270 kOe for H ∥ [100] and 150 kOe for H ∥ [001]. The angular dependence of Hc2 is well fitted by the anisotropic mass model, reflecting a quasi-two-dimensional electronic state. The Maki parameter κ2 and thermodynamical critical field Hc are approximately determined as κ2 ≃ 50 and Hc(0) = 4.7 kOe from the equilibrium magnetization curve.",

keywords = "Heavy fermion superconductor, Magnetization, PuRhGa",

author = "Yoshinori Haga and Dai Aoki and Matsuda, {Tatsuma D.} and Kunihisa Nakajima and Yasuo Arai and Etsuji Yamamoto and Akio Nakamura and Yoshiya Homma and Yoshinobu Shiokawa and Yoshichika Onuki",

year = "2005",

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TY - JOUR

T1 - Single crystal growth and anisotropic superconducting property of PuRhGa5

AU - Haga, Yoshinori

AU - Aoki, Dai

AU - Matsuda, Tatsuma D.

AU - Nakajima, Kunihisa

AU - Arai, Yasuo

AU - Yamamoto, Etsuji

AU - Nakamura, Akio

AU - Homma, Yoshiya

AU - Shiokawa, Yoshinobu

AU - Onuki, Yoshichika

PY - 2005/6

Y1 - 2005/6

N2 - We grew a single crystal of the transuranium superconductor PuRhGa 5 with the tetragonal structure by the Ga-flux method, and measured its magnetic susceptibility, magnetization and AC susceptibility. The magnetic susceptibility is found to reveal no distinct anisotropy between H ∥ [100] and [001]. The upper critical field Hc2 for superconductivity is, however, highly anisotropic: Hc2(0) = 270 kOe for H ∥ [100] and 150 kOe for H ∥ [001]. The angular dependence of Hc2 is well fitted by the anisotropic mass model, reflecting a quasi-two-dimensional electronic state. The Maki parameter κ2 and thermodynamical critical field Hc are approximately determined as κ2 ≃ 50 and Hc(0) = 4.7 kOe from the equilibrium magnetization curve.

AB - We grew a single crystal of the transuranium superconductor PuRhGa 5 with the tetragonal structure by the Ga-flux method, and measured its magnetic susceptibility, magnetization and AC susceptibility. The magnetic susceptibility is found to reveal no distinct anisotropy between H ∥ [100] and [001]. The upper critical field Hc2 for superconductivity is, however, highly anisotropic: Hc2(0) = 270 kOe for H ∥ [100] and 150 kOe for H ∥ [001]. The angular dependence of Hc2 is well fitted by the anisotropic mass model, reflecting a quasi-two-dimensional electronic state. The Maki parameter κ2 and thermodynamical critical field Hc are approximately determined as κ2 ≃ 50 and Hc(0) = 4.7 kOe from the equilibrium magnetization curve.

KW - Heavy fermion superconductor

KW - Magnetization

KW - PuRhGa

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DO - 10.1143/JPSJ.74.1698

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SN - 0031-9015

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SP - 1698

EP - 1701

JO - Journal of the Physical Society of Japan

JF - Journal of the Physical Society of Japan

IS - 6

ER -

Single crystal growth and anisotropic superconducting property of PuRhGa₅

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Keywords

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