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

IMR - Materials Processing and Characterization Division

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

3 Citations (Scopus)

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.

Original language	English
Pages (from-to)	929-930
Number of pages	2
Journal	Physica B: Condensed Matter
Volume	378-380
Issue number	SPEC. ISS.
DOIs	https://doi.org/10.1016/j.physb.2006.01.353
Publication status	Published - 2006 May 1

Keywords

NMR
NpO
Quadrupolar/octupolar ordering

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10.1016/j.physb.2006.01.353

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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.",

keywords = "NMR, NpO, Quadrupolar/octupolar ordering",

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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M3 - Article

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EP - 930

JO - Physica B: Condensed Matter

JF - Physica B: Condensed Matter

IS - SPEC. ISS.

ER -

Multipolar ordering in NpO ₂ probed by NMR

Abstract

Keywords

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