NMR shift measurements of69Ga in unconventional superconductor PuRhGa5

Hironori Sakai; Yo Tokunaga; Tatsuya Fujimoto; Shinsaku Kambe; Russell E. Walstedt; Hiroshi Yasuoka; Dai Aoki; Yoshiya Homma; Etsuji Yamamoto; Akio Nakamura; Yoshinobu Shiokawa; Kunihisa Nakajima; Yasuo Arai; Tatsuma D. Matsuda; Yoshinori Haga; Yoshichika Onuki

doi:10.1143/jpsjs.75s.50

NMR shift measurements of⁶⁹Ga in unconventional superconductor PuRhGa₅

Hironori Sakai, Yo Tokunaga, Tatsuya Fujimoto, Shinsaku Kambe, Russell E. Walstedt, Hiroshi Yasuoka, Dai Aoki, Yoshiya Homma, Etsuji Yamamoto, Akio Nakamura, Yoshinobu Shiokawa, Kunihisa Nakajima, Yasuo Arai, Tatsuma D. Matsuda, Yoshinori Haga, Yoshichika Onuki

Materials Processing and Characterization Division

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

6 Citations (Scopus)

Abstract

The NMR shift (K) at the Ga(2) site (the 4i site) has been measured in PuRhGa₅, a compound which shows anisotropic superconductivity below T_c ≈ 9 K. In the normal state, K(T) is very nearly independent of T below ∼30 K. This result is consistent with the relaxation rate measurements. This Korringa-like behavior indicates the formation of Fermi-liquid state below ∼30 K. The transferred hyperfine coupling constants have been estimated from the relation between K and the bulk susceptibility, showing a strong anisotropy. Measurements of K(T) in the superconducting state have also been performed. A decrease of K in the superconducting state has been observed, which strongly suggests a spin-singlet pairing.

Original language	English
Pages (from-to)	50-52
Number of pages	3
Journal	journal of the physical society of japan
Volume	75
Issue number	SUPPL.
DOIs	https://doi.org/10.1143/jpsjs.75s.50
Publication status	Published - 2006

Keywords

NMR shift
PuRhGa
Spin-singlet pairing
Superconductivity

ASJC Scopus subject areas

Physics and Astronomy(all)

Access to Document

10.1143/jpsjs.75s.50

Cite this

Sakai, H., Tokunaga, Y., Fujimoto, T., Kambe, S., Walstedt, R. E., Yasuoka, H., Aoki, D., Homma, Y., Yamamoto, E., Nakamura, A., Shiokawa, Y., Nakajima, K., Arai, Y., Matsuda, T. D., Haga, Y., & Onuki, Y. (2006). NMR shift measurements of⁶⁹Ga in unconventional superconductor PuRhGa₅. journal of the physical society of japan, 75(SUPPL.), 50-52. https://doi.org/10.1143/jpsjs.75s.50

Sakai, H, Tokunaga, Y, Fujimoto, T, Kambe, S, Walstedt, RE, Yasuoka, H, Aoki, D , Homma, Y, Yamamoto, E, Nakamura, A, Shiokawa, Y, Nakajima, K, Arai, Y, Matsuda, TD, Haga, Y & Onuki, Y 2006, 'NMR shift measurements of⁶⁹Ga in unconventional superconductor PuRhGa₅', journal of the physical society of japan, vol. 75, no. SUPPL., pp. 50-52. https://doi.org/10.1143/jpsjs.75s.50

@article{cc4b260d65414805aad499017d68b1df,

title = "NMR shift measurements of69Ga in unconventional superconductor PuRhGa5",

abstract = "The NMR shift (K) at the Ga(2) site (the 4i site) has been measured in PuRhGa5, a compound which shows anisotropic superconductivity below Tc ≈ 9 K. In the normal state, K(T) is very nearly independent of T below ∼30 K. This result is consistent with the relaxation rate measurements. This Korringa-like behavior indicates the formation of Fermi-liquid state below ∼30 K. The transferred hyperfine coupling constants have been estimated from the relation between K and the bulk susceptibility, showing a strong anisotropy. Measurements of K(T) in the superconducting state have also been performed. A decrease of K in the superconducting state has been observed, which strongly suggests a spin-singlet pairing.",

keywords = "NMR shift, PuRhGa, Spin-singlet pairing, Superconductivity",

author = "Hironori Sakai and Yo Tokunaga and Tatsuya Fujimoto and Shinsaku Kambe and Walstedt, {Russell E.} and Hiroshi Yasuoka and Dai Aoki and Yoshiya Homma and Etsuji Yamamoto and Akio Nakamura and Yoshinobu Shiokawa and Kunihisa Nakajima and Yasuo Arai and Matsuda, {Tatsuma D.} and Yoshinori Haga and Yoshichika Onuki",

year = "2006",

doi = "10.1143/jpsjs.75s.50",

language = "English",

volume = "75",

pages = "50--52",

journal = "Journal of the Physical Society of Japan",

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publisher = "Physical Society of Japan",

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T1 - NMR shift measurements of69Ga in unconventional superconductor PuRhGa5

AU - Sakai, Hironori

AU - Tokunaga, Yo

AU - Fujimoto, Tatsuya

AU - Kambe, Shinsaku

AU - Walstedt, Russell E.

AU - Yasuoka, Hiroshi

AU - Aoki, Dai

AU - Homma, Yoshiya

AU - Yamamoto, Etsuji

AU - Nakamura, Akio

AU - Shiokawa, Yoshinobu

AU - Nakajima, Kunihisa

AU - Arai, Yasuo

AU - Matsuda, Tatsuma D.

AU - Haga, Yoshinori

AU - Onuki, Yoshichika

PY - 2006

Y1 - 2006

N2 - The NMR shift (K) at the Ga(2) site (the 4i site) has been measured in PuRhGa5, a compound which shows anisotropic superconductivity below Tc ≈ 9 K. In the normal state, K(T) is very nearly independent of T below ∼30 K. This result is consistent with the relaxation rate measurements. This Korringa-like behavior indicates the formation of Fermi-liquid state below ∼30 K. The transferred hyperfine coupling constants have been estimated from the relation between K and the bulk susceptibility, showing a strong anisotropy. Measurements of K(T) in the superconducting state have also been performed. A decrease of K in the superconducting state has been observed, which strongly suggests a spin-singlet pairing.

AB - The NMR shift (K) at the Ga(2) site (the 4i site) has been measured in PuRhGa5, a compound which shows anisotropic superconductivity below Tc ≈ 9 K. In the normal state, K(T) is very nearly independent of T below ∼30 K. This result is consistent with the relaxation rate measurements. This Korringa-like behavior indicates the formation of Fermi-liquid state below ∼30 K. The transferred hyperfine coupling constants have been estimated from the relation between K and the bulk susceptibility, showing a strong anisotropy. Measurements of K(T) in the superconducting state have also been performed. A decrease of K in the superconducting state has been observed, which strongly suggests a spin-singlet pairing.

KW - NMR shift

KW - PuRhGa

KW - Spin-singlet pairing

KW - Superconductivity

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