Spectroscopic study and crystal-field analysis of<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msup><mml:mrow><mml:mi mathvariant="normal">Cm</mml:mi></mml:mrow><mml:mrow><mml:mn>3</mml:mn><mml:mo>+</mml:mo></mml:mrow></mml:msup></mml:mrow></mml:math>in the cubic-symmetry site of<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msub><mml:mrow><mml:mi mathvariant="normal">ThO</mml:mi></mml:mrow><mml:mrow><mml:mn>2</mml:mn></mm

Thouvenot, P.; Hubert, S.; Edelstein, N.

doi:10.1103/physrevb.50.9715

Cited by 29 publications

(18 citation statements)

References 10 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…7 [45,[51][52][53][54][55]59]. For the 5f 7 systems, no additional mechanisms other than the crystal-field interaction are needed to provide a satisfactory interpretation to the observed splitting in the 8 S 7/2 ground state of actinide ions [51,59].…”

Section: Ground-state Splitting Of F 7 Ionsmentioning

confidence: 92%

“…An analysis of crystal-field spectrum of Cm 3+ in ThO 2 was reported by Thouvenot et al [55]. The observed Cm 3+ spectra are from the cubic lattice site and are assigned to phonon-assisted electric dipole transitions and to magnetic dipole transitions.…”

Section: Article In Pressmentioning

confidence: 93%

“…Fig. 5 shows the correlation of the crystal-field strength N 0 v with free-ion interaction parameters F 2 and z 5f ; and the shift of the center of gravity for two multiplets of Cm 3+ in LaCl 3 [51], LuPO 4 [45,52], CsCdBr 3 [53], Cs 2 NaYCl 6 [54], and ThO 4 [55]. A trend is evident that the values of F 2 and z 5f and the center of gravities E ave ( 6 D 0 7/2 ) and E ave ( 6 P 0 5/2 ) decrease with increasing crystal-field strength, N v 0 .…”

Section: + Systemsmentioning

confidence: 98%

“…Dominant contribution to the ground state splitting of Cm 3+ in Cs 2 NaYCl 2 and ThO 2 Cm 3+ :Cs 2 NaYCl 6[54] Cm 3+ :ThO 2[55] …”

mentioning

confidence: 99%

See 3 more Smart Citations

Systematics of f-element crystal-field interaction

Liu

2005

Journal of Solid State Chemistry

View full text Add to dashboard Cite

Section: Ground-state Splitting Of F 7 Ionsmentioning

confidence: 92%

Section: Article In Pressmentioning

confidence: 93%

Section: + Systemsmentioning

confidence: 98%

“…Dominant contribution to the ground state splitting of Cm 3+ in Cs 2 NaYCl 2 and ThO 2 Cm 3+ :Cs 2 NaYCl 6[54] Cm 3+ :ThO 2[55] …”

mentioning

confidence: 99%

See 2 more Smart Citations

Systematics of f-element crystal-field interaction

Liu

2005

Journal of Solid State Chemistry

View full text Add to dashboard Cite

“…The Cm3/ThO2 sample was obtained as a powder by taking to dryness a solution containing a small amount of Cm3 ion with a known amount of Th nitrate and then calcining this material in air at -800°C. (6) The nominal Cm3 concentration of both the powdered and single crystal samples was estimated to be less than 0. 1 mole %.…”

Section: +mentioning

confidence: 99%

Optical properties of the Cm³⁺ion in single crystals

Edelstein

2002

SPIE Proceedings

View full text Add to dashboard Cite

The Cm3 ion, atomic number 96, has the electronic configuration [Rn core, 5f7] and is the actimde analog of the lanthanide ion Gd3 [Xe core, 4f7]. The ground term has only ' 87% 8S712 parentage due to the large spin-orbit . 08 3+. .. interaction as compared to the almost 100 /o S712 parentage for Gd . The electrostatic mteraction between equivalent electrons in the f7 shell results in a large gap between the octet state (8S712) of the ground term and the sextet states (6D712, 6P7i2, 6P5i2 ) of the excited multiplets. For Gd3 this splitting results in a gap greater than 30,000 cnf'. The greater spatial extent of the 5f electron shell results in a smaller electrostatic interaction between equivalent electrons in the 5f shell than in the 4f shell. Thus for Cm3, this splitting is on the order of 16,000 cm1. The ground term multiplet splitting is small, ( 2 -50 cm1) because the largest component of the ground multiplet has zero angular momentum.However for Gd3 in most crystals, this ground term splitting is much less than 1 cm1. Early detailed studies of the Cm3 optical spectra were performed with the 244Cm isotope. During the past decade or so, multi-milligram quantities of 248Cm (248Cm, Ti12 3.4x105y) have become available. A number of single crystals (LaCl3, LuPO4, Cs2NaYC16, CsCdBr3) have been doped with the 248Cm isotope and optical studies of these samples have been performed using laser selective excitation and fluorescence techniques. Excited state absorption studies allowed the collection of data to 40,000 cmt using two visible lasers. Results from these experiments will be reviewed and comparisons will be made between the 5f and 4f series.

show abstract