NMR investigation of quadrupole order parameter in actinide dioxides

Y. Tokunaga; Y. Homma; S. Kambe; D. Aoki; H. Sakai; H. Chudo; K. Ikushima; E. Yamamoto; A. Nakamura; Y. Shiokawa; R. E. Walstedt; H. Yasuoka

NMR investigation of quadrupole order parameter in actinide dioxides

Y. Tokunaga, Y. Homma, S. Kambe, D. Aoki, H. Sakai, H. Chudo, K. Ikushima, E. Yamamoto, A. Nakamura, Y. Shiokawa, R. E. Walstedt, H. Yasuoka

金属材料研究所・材料プロセス・評価研究部

研究成果: Article › 査読

5 被引用数 (Scopus)

抄録

¹⁷O-NMR have been performed to investigate the order parameters in actinide dioxides. In the antiferro-magnetic ordered state of UO₂, magnetic dipole and electric quadrupole order parameters have been extracted individually through the microscopic hyperfine interactions with ¹⁷O nuclei. We have also detected the development of the quadrupole order parameter in the exotic multipolar ordering state of NpO₂. The large value of the critical exponent suggests the secondary character of the quadrupole ordering in NpO₂.

本文言語	English
ページ（範囲）	1663-1665
ページ数	3
ジャーナル	Journal of Optoelectronics and Advanced Materials
巻	10
号	7
出版ステータス	Published - 2008 7月

ASJC Scopus subject areas

電子材料、光学材料、および磁性材料
原子分子物理学および光学
凝縮系物理学
電子工学および電気工学

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title = "NMR investigation of quadrupole order parameter in actinide dioxides",

abstract = "17O-NMR have been performed to investigate the order parameters in actinide dioxides. In the antiferro-magnetic ordered state of UO2, magnetic dipole and electric quadrupole order parameters have been extracted individually through the microscopic hyperfine interactions with 17O nuclei. We have also detected the development of the quadrupole order parameter in the exotic multipolar ordering state of NpO2. The large value of the critical exponent suggests the secondary character of the quadrupole ordering in NpO2.",

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author = "Y. Tokunaga and Y. Homma and S. Kambe and D. Aoki and H. Sakai and H. Chudo and K. Ikushima and E. Yamamoto and A. Nakamura and Y. Shiokawa and Walstedt, {R. E.} and H. Yasuoka",

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language = "English",

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T1 - NMR investigation of quadrupole order parameter in actinide dioxides

AU - Tokunaga, Y.

AU - Homma, Y.

AU - Kambe, S.

AU - Aoki, D.

AU - Sakai, H.

AU - Chudo, H.

AU - Ikushima, K.

AU - Yamamoto, E.

AU - Nakamura, A.

AU - Shiokawa, Y.

AU - Walstedt, R. E.

AU - Yasuoka, H.

PY - 2008/7

Y1 - 2008/7

N2 - 17O-NMR have been performed to investigate the order parameters in actinide dioxides. In the antiferro-magnetic ordered state of UO2, magnetic dipole and electric quadrupole order parameters have been extracted individually through the microscopic hyperfine interactions with 17O nuclei. We have also detected the development of the quadrupole order parameter in the exotic multipolar ordering state of NpO2. The large value of the critical exponent suggests the secondary character of the quadrupole ordering in NpO2.

AB - 17O-NMR have been performed to investigate the order parameters in actinide dioxides. In the antiferro-magnetic ordered state of UO2, magnetic dipole and electric quadrupole order parameters have been extracted individually through the microscopic hyperfine interactions with 17O nuclei. We have also detected the development of the quadrupole order parameter in the exotic multipolar ordering state of NpO2. The large value of the critical exponent suggests the secondary character of the quadrupole ordering in NpO2.

KW - Critical exponent1 Introduction

KW - NMR

KW - NpO

KW - UO

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JO - Journal of Optoelectronics and Advanced Materials

JF - Journal of Optoelectronics and Advanced Materials

IS - 7

ER -

NMR investigation of quadrupole order parameter in actinide dioxides

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ASJC Scopus subject areas

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