NMR observation of quadrupolar order parameter in NpO2

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

doi:10.1016/j.jmmm.2006.10.114

NMR observation of quadrupolar order parameter in NpO₂

Y. Tokunaga, D. Aoki, Y. Homma, S. Kambe, H. Sakai, S. Ikeda, T. Fujimoto, R. E. Walstedt, H. Yasuoka, Y. Shiokawa, E. Yamamoto, A. Nakamura

Materials Processing and Characterization Division

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

3 Citations (Scopus)

Abstract

We report ¹⁷O NMR measurements in a single crystal of NpO₂. We have observed oscillatory spin-echo decay for certain O sites below T₀ = 26 K. These spin-echo oscillations are well understood in terms of an axially symmetric electric field gradient created by a longitudinal triple-q antiferro-quadrupolar ordering. In the present work, we show that direct observation of the quadrupolar order parameters is possible by means of NMR.

Original language	English
Pages (from-to)	735-737
Number of pages	3
Journal	Journal of Magnetism and Magnetic Materials
Volume	310
Issue number	2 SUPPL. PART 1
DOIs	https://doi.org/10.1016/j.jmmm.2006.10.114
Publication status	Published - 2007 Mar

Keywords

Multipolar order
NMR
NpO
Spin-echo oscillation

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

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10.1016/j.jmmm.2006.10.114

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NMR observation of quadrupolar order parameter in NpO₂. / Tokunaga, Y.; Aoki, D.; Homma, Y.; Kambe, S.; Sakai, H.; Ikeda, S.; Fujimoto, T.; Walstedt, R. E.; Yasuoka, H.; Shiokawa, Y.; Yamamoto, E.; Nakamura, A.

In: Journal of Magnetism and Magnetic Materials, Vol. 310, No. 2 SUPPL. PART 1, 03.2007, p. 735-737.

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

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abstract = "We report 17O NMR measurements in a single crystal of NpO2. We have observed oscillatory spin-echo decay for certain O sites below T0 = 26 K. These spin-echo oscillations are well understood in terms of an axially symmetric electric field gradient created by a longitudinal triple-q antiferro-quadrupolar ordering. In the present work, we show that direct observation of the quadrupolar order parameters is possible by means of NMR.",

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AU - Tokunaga, Y.

AU - Aoki, D.

AU - Homma, Y.

AU - Kambe, S.

AU - Sakai, H.

AU - Ikeda, S.

AU - Fujimoto, T.

AU - Walstedt, R. E.

AU - Yasuoka, H.

AU - Shiokawa, Y.

AU - Yamamoto, E.

AU - Nakamura, A.

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KW - Multipolar order

KW - NMR

KW - NpO

KW - Spin-echo oscillation

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