Multipolar ordering in NpO 2 probed by NMR

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

doi:10.1016/j.physb.2006.01.353

Multipolar ordering in NpO ₂ probed by NMR

Y. Tokunaga, Y. Homma, S. Kambe, D. Aoki, H. Sakai, 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

3 被引用数 (Scopus)

抄録

We have initiated the first ¹⁷O-NMR measurements in the ordered state of NpO ₂. From the ¹⁷O-NMR spectrum, we have confirmed the occurrence of two inequivalent oxygen sites below T₀ = 26 K. It has also been shown that the ¹⁷O-NMR spectrum in the ordered state can be understood by considering an unconventional hyperfine interaction between the ¹⁷O nuclear spins and field-induced antiferromagnetic moments arising from the longitudinal triple- q antiferro-quadrupolar order. These NMR results give strong evidence for the occurrence of the longitudinal triple- q multipole structure in NpO ₂.

本文言語	English
ページ（範囲）	929-930
ページ数	2
ジャーナル	Physica B: Condensed Matter
巻	378-380
号	SPEC. ISS.
DOI	https://doi.org/10.1016/j.physb.2006.01.353
出版ステータス	Published - 2006 5月 1

ASJC Scopus subject areas

電子材料、光学材料、および磁性材料
凝縮系物理学
電子工学および電気工学

文献へのアクセス

10.1016/j.physb.2006.01.353

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引用スタイル

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title = "Multipolar ordering in NpO 2 probed by NMR",

abstract = "We have initiated the first 17O-NMR measurements in the ordered state of NpO 2. From the 17O-NMR spectrum, we have confirmed the occurrence of two inequivalent oxygen sites below T0 = 26 K. It has also been shown that the 17O-NMR spectrum in the ordered state can be understood by considering an unconventional hyperfine interaction between the 17O nuclear spins and field-induced antiferromagnetic moments arising from the longitudinal triple- q antiferro-quadrupolar order. These NMR results give strong evidence for the occurrence of the longitudinal triple- q multipole structure in NpO 2.",

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

year = "2006",

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doi = "10.1016/j.physb.2006.01.353",

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T1 - Multipolar ordering in NpO 2 probed by NMR

AU - Tokunaga, Y.

AU - Homma, Y.

AU - Kambe, S.

AU - Aoki, D.

AU - Sakai, H.

AU - Yamamoto, E.

AU - Nakamura, A.

AU - Shiokawa, Y.

AU - Walstedt, R. E.

AU - Yasuoka, H.

PY - 2006/5/1

Y1 - 2006/5/1

N2 - We have initiated the first 17O-NMR measurements in the ordered state of NpO 2. From the 17O-NMR spectrum, we have confirmed the occurrence of two inequivalent oxygen sites below T0 = 26 K. It has also been shown that the 17O-NMR spectrum in the ordered state can be understood by considering an unconventional hyperfine interaction between the 17O nuclear spins and field-induced antiferromagnetic moments arising from the longitudinal triple- q antiferro-quadrupolar order. These NMR results give strong evidence for the occurrence of the longitudinal triple- q multipole structure in NpO 2.

AB - We have initiated the first 17O-NMR measurements in the ordered state of NpO 2. From the 17O-NMR spectrum, we have confirmed the occurrence of two inequivalent oxygen sites below T0 = 26 K. It has also been shown that the 17O-NMR spectrum in the ordered state can be understood by considering an unconventional hyperfine interaction between the 17O nuclear spins and field-induced antiferromagnetic moments arising from the longitudinal triple- q antiferro-quadrupolar order. These NMR results give strong evidence for the occurrence of the longitudinal triple- q multipole structure in NpO 2.

KW - NMR

KW - NpO

KW - Quadrupolar/octupolar ordering

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