Enhancement of relaxation rates in the normal state of superconductor PuRhGa5:NQR relaxation study

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

doi:10.1016/j.jmmm.2006.10.881

Enhancement of relaxation rates in the normal state of superconductor PuRhGa₅:NQR relaxation study

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

IMR - Materials Processing and Characterization Division

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

2 Citations (Scopus)

Abstract

The spin-lattice relaxation rates (1 / T₁) have been measured under zero field using nuclear quadrupole resonance (NQR) lines in superconductor PuRhGa₅ and Pauli-paramagnet LuCoGa₅. In the reference LuCoGa₅ with fully-occupied 4f shell, the 1 / T₁ shows the constant behavior of (T₁ T)^{- 1} = 0.495 ± 0.002(s K)^{- 1} . On the other hand, in PuRhGa₅, 1 / T₁ is much larger than in LuCoGa₅ and the 1 / T₁ ∝ T behavior below ∼ 30 K is seen, where its (T₁ T)^{- 1} value is 3.27 ± 0.005(s K)^{- 1} . These results suggest a development of coherent Fermi liquid state incorporated with 5f electrons below ∼ 30 K in PuRhGa₅.

Original language	English
Pages (from-to)	e118-e119
Journal	Journal of Magnetism and Magnetic Materials
Volume	310
Issue number	2 SUPPL. PART 1
DOIs	https://doi.org/10.1016/j.jmmm.2006.10.881
Publication status	Published - 2007 Mar

Keywords

NQR
PuRhGa
Relaxation rates

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10.1016/j.jmmm.2006.10.881

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Sakai, H., Kambe, S., Tokunaga, Y., Fujimoto, T., 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. (2007). Enhancement of relaxation rates in the normal state of superconductor PuRhGa₅:NQR relaxation study. Journal of Magnetism and Magnetic Materials, 310(2 SUPPL. PART 1), e118-e119. https://doi.org/10.1016/j.jmmm.2006.10.881

@article{e0fde046443247aa950698737c0072a0,

title = "Enhancement of relaxation rates in the normal state of superconductor PuRhGa5:NQR relaxation study",

abstract = "The spin-lattice relaxation rates (1 / T1) have been measured under zero field using nuclear quadrupole resonance (NQR) lines in superconductor PuRhGa5 and Pauli-paramagnet LuCoGa5. In the reference LuCoGa5 with fully-occupied 4f shell, the 1 / T1 shows the constant behavior of (T1 T)- 1 = 0.495 ± 0.002(s K)- 1 . On the other hand, in PuRhGa5, 1 / T1 is much larger than in LuCoGa5 and the 1 / T1 ∝ T behavior below ∼ 30 K is seen, where its (T1 T)- 1 value is 3.27 ± 0.005(s K)- 1 . These results suggest a development of coherent Fermi liquid state incorporated with 5f electrons below ∼ 30 K in PuRhGa5.",

keywords = "NQR, PuRhGa, Relaxation rates",

author = "H. Sakai and S. Kambe and Y. Tokunaga and T. Fujimoto and Walstedt, {R. E.} and H. Yasuoka and D. Aoki and Y. Homma and E. Yamamoto and A. Nakamura and Y. Shiokawa and K. Nakajima and Y. Arai and Matsuda, {T. D.} and Y. Haga and Y. Onuki",

year = "2007",

month = mar,

doi = "10.1016/j.jmmm.2006.10.881",

language = "English",

volume = "310",

pages = "e118--e119",

journal = "Journal of Magnetism and Magnetic Materials",

issn = "0304-8853",

publisher = "Elsevier",

number = "2 SUPPL. PART 1",

}

Sakai, H, Kambe, S, Tokunaga, Y, Fujimoto, T, Walstedt, RE, Yasuoka, H, Aoki, D , Homma, Y, Yamamoto, E, Nakamura, A, Shiokawa, Y, Nakajima, K, Arai, Y, Matsuda, TD, Haga, Y & Onuki, Y 2007, 'Enhancement of relaxation rates in the normal state of superconductor PuRhGa₅:NQR relaxation study', Journal of Magnetism and Magnetic Materials, vol. 310, no. 2 SUPPL. PART 1, pp. e118-e119. https://doi.org/10.1016/j.jmmm.2006.10.881

TY - JOUR

T1 - Enhancement of relaxation rates in the normal state of superconductor PuRhGa5:NQR relaxation study

AU - Sakai, H.

AU - Kambe, S.

AU - Tokunaga, Y.

AU - Fujimoto, T.

AU - Walstedt, R. E.

AU - Yasuoka, H.

AU - Aoki, D.

AU - Homma, Y.

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.

PY - 2007/3

Y1 - 2007/3

N2 - The spin-lattice relaxation rates (1 / T1) have been measured under zero field using nuclear quadrupole resonance (NQR) lines in superconductor PuRhGa5 and Pauli-paramagnet LuCoGa5. In the reference LuCoGa5 with fully-occupied 4f shell, the 1 / T1 shows the constant behavior of (T1 T)- 1 = 0.495 ± 0.002(s K)- 1 . On the other hand, in PuRhGa5, 1 / T1 is much larger than in LuCoGa5 and the 1 / T1 ∝ T behavior below ∼ 30 K is seen, where its (T1 T)- 1 value is 3.27 ± 0.005(s K)- 1 . These results suggest a development of coherent Fermi liquid state incorporated with 5f electrons below ∼ 30 K in PuRhGa5.

AB - The spin-lattice relaxation rates (1 / T1) have been measured under zero field using nuclear quadrupole resonance (NQR) lines in superconductor PuRhGa5 and Pauli-paramagnet LuCoGa5. In the reference LuCoGa5 with fully-occupied 4f shell, the 1 / T1 shows the constant behavior of (T1 T)- 1 = 0.495 ± 0.002(s K)- 1 . On the other hand, in PuRhGa5, 1 / T1 is much larger than in LuCoGa5 and the 1 / T1 ∝ T behavior below ∼ 30 K is seen, where its (T1 T)- 1 value is 3.27 ± 0.005(s K)- 1 . These results suggest a development of coherent Fermi liquid state incorporated with 5f electrons below ∼ 30 K in PuRhGa5.

KW - NQR

KW - PuRhGa

KW - Relaxation rates

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UR - http://www.scopus.com/inward/citedby.url?scp=33847300533&partnerID=8YFLogxK

U2 - 10.1016/j.jmmm.2006.10.881

DO - 10.1016/j.jmmm.2006.10.881

M3 - Article

AN - SCOPUS:33847300533

SN - 0304-8853

VL - 310

SP - e118-e119

JO - Journal of Magnetism and Magnetic Materials

JF - Journal of Magnetism and Magnetic Materials

IS - 2 SUPPL. PART 1

ER -

Enhancement of relaxation rates in the normal state of superconductor PuRhGa₅:NQR relaxation study

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