NMR studies of actinide oxides – A review

Russell E. Walstedt; Yo Tokunaga; Shinsaku Kambe

doi:10.1016/j.crhy.2014.06.007

NMR studies of actinide oxides – A review
[Le point sur les études des oxydes d'actinides par RMN]

Russell E. Walstedt ¹ ; Yo Tokunaga ² ; Shinsaku Kambe ²

¹ Physics Department, The University of Michigan, Ann Arbor, MI 48109, USA
² Advanced Science Research Center, Japan Atomic Energy Agency, Tokai, Ibaraki 319-1195, Japan

Comptes Rendus. Physique, Emergent phenomena in actinides, Volume 15 (2014) no. 7, pp. 563-572.

Résumé
Abstract

Dans ce papier, nous passons brièvement en revue les propriétés de l'état fondamental des oxydes cubiques AnO₂, avec $An = U$ , Np, Pu et Am, telles que révélées principalement par les études RMN du ligand ¹⁷O²⁻. Pour PuO₂, où l'état fondamental dans le champ cristallin cubique est un singulet non magnétique, seul le ²³⁹Pu a été mesuré dans une étude récente, qui représente une percée pour ce qui concerne cet isotope d'accès difficile. UO₂ a un état fondamental antiferromagnétique (AFM) exotique à quatre sous-réseaux, tandis que NpO₂ montre le premier état fondamental multipolaire identifié dans un composé d'actinide, consistant en un mélange d'ordre octupolaire et de rang 5 (triakontadipolaire). Par ailleurs, AmO₂, même avec son isotope possédant la plus longue période, ²⁴³Am, devient si rapidement désordonné du fait des dommages qu'il subit par auto-irradiation que son état fondamental était simplement, dans une étude récente, un verre de spins, alors que l'état fondamental réel du composé cubique cristallin demeure masqué par cette difficulté expérimentale. L'accent est mis sur la façon dont les mesures RMN sur le noyau ¹⁷O complètent les autres données expérimentales pour confirmer et vérifier l'état fondamental, souvent exotique, établi pour les systèmes AnO₂.

In this paper, we offer a brief review of the ground-state properties of the cubic oxides AnO₂, where $An = U$ , Np, Pu and Am, as revealed mainly by NMR studies of the ¹⁷O²⁻ ligand. For PuO₂, where the ground state is a nonmagnetic singlet eigenstate of the cubic crystal field, only the ²³⁹Pu has been studied, in a recent breakthrough observation of this elusive isotope [1]. For UO₂ and NpO₂, the former has an exotic four-sublattice antiferromagnetic (AFM) ground state, while the latter has the first multipolar ground state to be identified among actinide compounds, namely a mixture of octupolar and rank 5 (triakontadipolar) order. On the other hand AmO₂, even with the longest-lived isotope ²⁴³Am, becomes disordered so quickly from radiation self-damage that its ground state in a recent study was simply a spin glass, while the actual ground state of the cubic crystalline compound remains obscured by this experimental problem. The emphasis throughout is on how ¹⁷O NMR studies complement other experimental data to confirm and verify the known exotic magnetic ground states of AnO₂ systems.

Publié le : 2014-07-16

DOI : 10.1016/j.crhy.2014.06.007

Keywords: Actinide oxides, Multipolar order, Nuclear magnetic resonance
Mots-clés : Oxydes d'actinides, Ordre multipolaire, Résonance magnétique nucléaire

Affiliations des auteurs :

Russell E. Walstedt ¹ ; Yo Tokunaga ² ; Shinsaku Kambe ²

¹ Physics Department, The University of Michigan, Ann Arbor, MI 48109, USA
² Advanced Science Research Center, Japan Atomic Energy Agency, Tokai, Ibaraki 319-1195, Japan

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     title = {NMR studies of actinide oxides {\textendash} {A} review},
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     doi = {10.1016/j.crhy.2014.06.007},
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Russell E. Walstedt; Yo Tokunaga; Shinsaku Kambe. NMR studies of actinide oxides – A review. Comptes Rendus. Physique, Emergent phenomena in actinides, Volume 15 (2014) no. 7, pp. 563-572. doi : 10.1016/j.crhy.2014.06.007. https://comptes-rendus.academie-sciences.fr/physique/articles/10.1016/j.crhy.2014.06.007/

Bibliographie
Cité par

[1] H. Yasuoka; G. Koutroulakis; H. Chudo; S. Richmond; D.K. Veirs; A.I. Smith; E.D. Bauer; J.D. Thompson; G.D. Jarvinen; D.L. Clark Observation of ²³⁹Pu nuclear magnetic resonance, Science, Volume 336 (2012), pp. 901-904

[2] K. Ikushima; H. Yasuoka; S. Tsutsui; M. Saeki; S. Nasu; M. Date Observation of ²³⁵U NMR in the antiferromagnetic state of UO₂, J. Phys. Soc. Jpn., Volume 67 (1998), pp. 65-66

[3] K. Ikushima; S. Tsutsui; Y. Haga; H. Yasuoka; R.E. Walstedt; N.M. Masaki; A. Nakamura; S. Nasu; Y. Ōnuki First-order phase transition in UO₂: ²³⁵U and ¹⁷O NMR study, Phys. Rev. B, Volume 63 (2001), p. 104404 (10 p)

[4] 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, J. Optoelectron. Adv. Mater., Volume 10 (2008), pp. 1663-1665

[5] P. Santini; S. Carretta; G. Amoretti; R. Caciuffo; N. Magnani; G.H. Lander Multipolar interactions in f-electron systems: the paradigm of actinide oxides, Rev. Mod. Phys., Volume 81 (2009), p. 807

[6] H.U. Rahman; W.A. Runciman A crystal field calculation in uranium dioxide, J. Phys. Chem. Solids, Volume 27 (1966), pp. 1833-1836

[7] J.A. Paixão; C. Detlefs; M.J. Longfield; R. Caciuffo; P. Santini; N. Bernhoeft; J. Rebizant; G.H. Lander Triple-q octupolar ordering in NpO₂, Phys. Rev. Lett., Volume 89 (2002), p. 187202 (4 p)

[8] S. Kern; R.A. Robinson; H. Nakotte; G.H. Lander; B. Cort; P. Watson; F.A. Vigil Crystal-field transition in PuO₂, Phys. Rev. B, Volume 59 (1999), pp. 104-106

[9] D.G. Karraker Magnetic susceptibility of ²⁴³AmO₂, J. Chem. Phys., Volume 63 (1975), pp. 3174-3175

[10] T. Hotta; T. Hotta; H. Harima Effective crystalline electric field potential in a j–j coupling scheme, J. Phys. Soc. Jpn., Volume 80 (2009), p. 024408 (7 p. 15 p)

[11] S.B. Wilkins; R. Caciuffo; C. Detlefs; J. Rebizant; E. Colineau; F. Wastin; G.H. Lander Direct observation of electric-quadrupolar order in UO₂, Phys. Rev. B, Volume 73 (2006), p. 060406 (4 p)

[12] S. Carretta; P. Santini; R. Caciuffo; G. Amoretti Quadrupolar waves in uranium dioxide, Phys. Rev. Lett., Volume 105 (2010), p. 167201 (4 p)

[13] R. Caciuffo; P. Santini; S. Carretta; G. Amoretti; A. Hiess; N. Magnani; L.-P. Regnault; G.H. Lander Multipolar, magnetic, and vibrational lattice dynamics in the low–temperature phase of uranium dioxide, Phys. Rev. B, Volume 84 (2011), p. 104409 (10 p)

[14] A. Abragam, Clarendon Press, Oxford (1961), p. 233

[15] S.J. Allen; R.A. Cowley; G. Dolling Magnetic excitations in uranium dioxide, Phys. Rev., Volume 166 (1968), pp. 530-539

[16] J. Faber; G.H. Lander; P. Burlet; J. Rossat-Mignod; S. Quezel; O. Vogt; J.C. Spirlet; J. Rebizant Neutron diffraction on actinides, J. Less-Common Met., Volume 14 (1976), pp. 1151-1164

[17] H. Abe; H. Yasuoka; A. Hirai Spin echo modulation caused by the quadrupole interaction and multiple spin echoes, J. Phys. Soc. Jpn., Volume 21 (1966), pp. 77-89

[18] P. Pincus; J. Winter Influence of magnon–phonon coupling on the low-temperature magnetic properties of an antiferromagnet, Phys. Rev. Lett., Volume 7 (1961), pp. 269-270

[19] J.W. Ross; D.J. Lam The magnetic susceptibility of neptunium oxide and carbide between 4.2 K and 350 K, J. Appl. Phys., Volume 38 (1967), pp. 1451-1453

[20] P. Santini; G. Amoretti Magnetic-octupole order in neptunium oxide?, Phys. Rev. Lett., Volume 85 (2000), pp. 2188-2191

[21] D.W. Osborne; E.F. Westrum The heat capacity of thorium dioxide from 10 to $305 ° K$ . The heat capacity anomalies in uranium dioxide and neptunium dioxide, J. Chem. Phys., Volume 21 (1953), pp. 1884-1887

[22] J.M. Friedt; F.J. Litterst; J. Rebizant 25-K phase transition in NpO₂ from ²³⁷Np Mössbauer spectroscopy, Phys. Rev. B, Volume 32 (1985), pp. 257-263

[23] O. Sakai; R. Shiina; H. Shiba Invariant form of hyperfine interaction with multipolar moments – observation of octupolar moments in NpO₂ and ${Ce}_{1 - x} {La}_{x} B_{6}$ by NMR, J. Phys. Soc. Jpn., Volume 74 (2005), pp. 457-467

[24] R. Caciuffo; G.H. Lander; J.C. Spirlet; J.M. Fournier; W.F. Kuhs A search for anharmonic effects in NpO₂ at low temperature by neutron diffraction, Solid State Commun., Volume 64 (1987), pp. 149-152

[25] W. Kopmann; F.J. Litterst; H.-H. Klauss; M. Hillberg; W. Wagener; G.M. Kalvius; E. Schreier; F.J. Burghart; J. Rebizant; G.H. Lander Magnetic order in NpO₂ and UO₂ studied by muon spin rotation, J. Alloys Compd., Volume 271–273 (1998), pp. 463-466

[26] D. Mannix; G.H. Lander; J. Rebizant; R. Caciuffo; N. Bernhoeft; E. Lidström; C. Vettier Unusual magnetism of NpO₂: a study with resonant X-ray scattering, Phys. Rev. B, Volume 60 ( 1999-II ), pp. 15187-15193

[27] Y. Tokunaga; Y. Homma; S. Kambe; D. Aoki; H. Sakai; E. Yamamoto; A. Nakamura; Y. Shiokawa; R.E. Walstedt; H. Yasuoka NMR evidence for triple-q multipole structure in NpO₂, Phys. Rev. Lett., Volume 94 (2005), p. 1372091 (4 p)

[28] Y. Tokunaga; D. Aoki; Y. Homma; S. Kambe; H. Sakai; S. Ikeda; T. Fujimoto; R.E. Walstedt; H. Yasuoka; E. Yamamoto; A. Nakamura; Y. Shiokawa NMR evidence for higher-order multipole order parameters in NpO₂, Phys. Rev. Lett., Volume 97 (2006), p. 2576011 (4 p)

[29] P. Santini; S. Carretta; N. Magnani; G. Amoretti; R. Caciuffo Hidden order and low-energy excitations in NpO₂, Phys. Rev. Lett., Volume 97 (2006), p. 2072031 (4 p)

[30] N. Magnani; S. Carretta; R. Caciuffo; P. Santini; G. Amoretti; A. Hiess; J. Rebizant; G.H. Lander Inelastic neutron scattering study of the multipolar order parameter in NpO₂, Phys. Rev. B, Volume 78 (2008), p. 104425 (6 p)

[31] T. Suzuki; N. Magnani; P. Oppeneer First-principles theory of multipolar order in NpO₂, Phys. Rev. B, Volume 82 (2010), p. 241103R (4 p)

[32] Y. Tokunaga; R.E. Walstedt; Y. Homma; D. Aoki; S. Kambe; H. Sakai; T. Fujimoto; S. Ikeda; E. Yamamoto; A. Nakamura; Y. Shiokawa; H. Yasuoka ²³⁷Np–¹⁷O cross relaxation in NpO₂ driven by indirect spin-spin coupling, Phys. Rev. B, Volume 74 (2006), p. 064421 (7 p)

[33] H. Chudo; Y. Tokunaga; S. Kambe; H. Sakai; Y. Haga; T.D. Matsuda; Y. Ōnuki; H. Yasuoka; S. Aoki; Y. Homma; R.E. Walstedt ²³⁷Np nuclear relaxation rate in heavy fermion superconductor NpPd₅Al₂, Phys. Rev. B, Volume 84 (2011), p. 099402 (5 p)

[34] Y. Tokunaga; T. Nishi; S. Kambe; M. Nakada; A. Itoh; Y. Homma; H. Sakai; H. Chudo NMR evidence for the 8.5 K phase transition in Americium oxide, J. Phys. Soc. Jpn., Volume 79 (2010), p. 0537051 (4 p)

[35] Yo Tokunaga; T. Nishi; M. Nakada; A. Itoh; H. Sakai; S. Kambe; Y. Homma; F. Honda; D. Aoki; R.E. Walstedt Self-radiation effect and glassy nature of magnetic transition in AmO₂ revealed by $^{17}$ O NMR, Phys. Rev. B, Volume 89 (2014), p. 214416 (8 p)

[36] S. Takagi; S. Ishihara; M. Yokoyama; H. Amitsuka Symmetry of the hidden order in ${URu}_{2} {Si}_{2}$ from nuclear magnetic resonance studies, J. Phys. Soc. Jpn., Volume 81 (2012), p. 114710 (13 p)

[37] S. Kambe; Y. Tokunaga; H. Sakai; T.D. Matsuda; Y. Haga; Z. Fisk; R.E. Walstedt NMR study of in-plane twofold ordering in ${URu}_{2} {Si}_{2}$ , Phys. Rev. Lett., Volume 110 (2013), p. 246406 (4 p)

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