Unconventional superconductivity in PuRhGa5: Ga NMR/NQR study

H. Sakai; Y. Tokunaga; T. Fujimoto; S. Kambe; R. E. Walstedt; H. Yasuoka; Dai Aoki; Yoshiya Homma; E. Yamamoto; A. Nakamura; Y. Shiokawa; K. Nakajima; Y. Arai; T. D. Matsuda; Y. Haga; Y. Onuki

doi:10.1016/j.physb.2006.01.385

Unconventional superconductivity in PuRhGa₅: Ga NMR/NQR study

H. Sakai, Y. Tokunaga, T. Fujimoto, S. Kambe, R. E. Walstedt, H. Yasuoka, Dai Aoki, Yoshiya Homma, E. Yamamoto, A. Nakamura, Y. Shiokawa, K. Nakajima, Y. Arai, T. D. Matsuda, Y. Haga, Y. Onuki

Materials Processing and Characterization Division

Research output: Contribution to journal › Article

5 Citations (Scopus)

Abstract

^69,71Ga NMR/NQR studies have been performed on a single crystal of the transuranium superconductor PuRhGa₅ with T_c ≃ 9 K. The spin-lattice relaxation rate 1 / T₁ reveals that PuRhGa₅ is an unconventional superconductor having an anisotropic superconducting gap. Moreover, Korringa behavior ( 1 / T₁ T = const. ) is observed in the normal state below ∼ 30 K. This result suggests that the superconductivity sets in after the formation of a Fermi liquid state in this compound.

Original language	English
Pages (from-to)	1005-1006
Number of pages	2
Journal	Physica B: Condensed Matter
Volume	378-380
Issue number	SPEC. ISS.
DOIs	https://doi.org/10.1016/j.physb.2006.01.385
Publication status	Published - 2006 May 1

Keywords

NMR/NQR
PuRhGa
Superconductivity

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Electrical and Electronic Engineering

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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). Unconventional superconductivity in PuRhGa₅: Ga NMR/NQR study. Physica B: Condensed Matter, 378-380(SPEC. ISS.), 1005-1006. https://doi.org/10.1016/j.physb.2006.01.385

Unconventional superconductivity in PuRhGa₅ : Ga NMR/NQR study. / Sakai, H.; Tokunaga, Y.; Fujimoto, T.; Kambe, S.; Walstedt, R. E.; Yasuoka, H.; Aoki, Dai ; Homma, Yoshiya; Yamamoto, E.; Nakamura, A.; Shiokawa, Y.; Nakajima, K.; Arai, Y.; Matsuda, T. D.; Haga, Y.; Onuki, Y.

In: Physica B: Condensed Matter, Vol. 378-380, No. SPEC. ISS., 01.05.2006, p. 1005-1006.

Research output: Contribution to journal › Article

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, 'Unconventional superconductivity in PuRhGa₅: Ga NMR/NQR study', Physica B: Condensed Matter, vol. 378-380, no. SPEC. ISS., pp. 1005-1006. https://doi.org/10.1016/j.physb.2006.01.385

Sakai, H. ; Tokunaga, Y. ; Fujimoto, T. ; Kambe, S. ; Walstedt, R. E. ; Yasuoka, H. ; Aoki, Dai ; Homma, Yoshiya ; Yamamoto, E. ; Nakamura, A. ; Shiokawa, Y. ; Nakajima, K. ; Arai, Y. ; Matsuda, T. D. ; Haga, Y. ; Onuki, Y. / Unconventional superconductivity in PuRhGa₅ : Ga NMR/NQR study. In: Physica B: Condensed Matter. 2006 ; Vol. 378-380, No. SPEC. ISS. pp. 1005-1006.

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title = "Unconventional superconductivity in PuRhGa5: Ga NMR/NQR study",

abstract = "69,71Ga NMR/NQR studies have been performed on a single crystal of the transuranium superconductor PuRhGa5 with Tc ≃ 9 K. The spin-lattice relaxation rate 1 / T1 reveals that PuRhGa5 is an unconventional superconductor having an anisotropic superconducting gap. Moreover, Korringa behavior ( 1 / T1 T = const. ) is observed in the normal state below ∼ 30 K. This result suggests that the superconductivity sets in after the formation of a Fermi liquid state in this compound.",

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AU - Sakai, H.

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AU - Fujimoto, T.

AU - Kambe, S.

AU - Walstedt, R. E.

AU - Yasuoka, H.

AU - Aoki, Dai

AU - Homma, Yoshiya

AU - Yamamoto, E.

AU - Nakamura, A.

AU - Shiokawa, Y.

AU - Nakajima, K.

AU - Arai, Y.

AU - Matsuda, T. D.

AU - Haga, Y.

AU - Onuki, Y.

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AB - 69,71Ga NMR/NQR studies have been performed on a single crystal of the transuranium superconductor PuRhGa5 with Tc ≃ 9 K. The spin-lattice relaxation rate 1 / T1 reveals that PuRhGa5 is an unconventional superconductor having an anisotropic superconducting gap. Moreover, Korringa behavior ( 1 / T1 T = const. ) is observed in the normal state below ∼ 30 K. This result suggests that the superconductivity sets in after the formation of a Fermi liquid state in this compound.

KW - NMR/NQR

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KW - Superconductivity

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