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- W2049465550 abstract "Locations and assignments of 105 crystal-field levels are reported for ${mathrm{Ho}}^{3+}$ in the trigonal ${mathrm{Na}}_{3}$[Ho(oxydiacetate${)}_{3}$]ensuremath{cdot}${2mathrm{N}mathrm{a}mathrm{C}mathrm{l}mathrm{O}}_{4}$ensuremath{cdot}${6mathrm{H}}_{2}$O system. These levels were located and assigned from transitions observed in axial and ensuremath{sigma}- and ensuremath{pi}-polarized orthoaxial absorption spectra obtained on single-crystal samples at temperatures between 5 and 295 K. The absorption measurements spanned the 8000--37 000-${mathrm{cm}}^{mathrm{ensuremath{-}}1}$ spectral region, and the assigned energy levels derive from 23 different [SL]J multiplet manifolds of the 4${mathit{f}}^{10}$ electronic configuration of ${mathrm{Ho}}^{3+}$, with principal SL parentages derived from nine different Russell-Saunders terms ${(}^{5}$I,${mathrm{}}^{5}$F,${mathrm{}}^{5}$S, $^{3}mathrm{K}$,${mathrm{}}^{5}$G${,}^{3}$H,${mathrm{}}^{3}$L, $^{3}mathrm{M}$, and $^{5}$D). The empirical energy-level data are analyzed in terms of a parametrized model Hamiltonian for the 4${mathit{f}}^{10}$ electronic configuration, assumed to be perturbed by a crystal field of trigonal dihedral (${mathit{D}}_{3}$) symmetry. Parametric fits of calculated-to-empirical energy-level data yield a rms deviation of ensuremath{sim}9 ${mathrm{cm}}^{mathrm{ensuremath{-}}1}$ (between calculated and observed energies).The Hamiltonian parameter values obtained from these energy-level analyses are compared with results obtained from similar analyses of ${mathrm{Ho}}^{3+}$ in other crystals and of other lanthanide (${mathit{M}}^{3+}$) ions in the ${mathrm{Na}}_{3}$[M(oxydiacetate${)}_{3}$]ensuremath{cdot}${2mathrm{N}mathrm{a}mathrm{C}mathrm{l}mathrm{O}}_{4}$ensuremath{cdot}${6mathrm{H}}_{2}$O system. In addition to energy-level locations and assignments, quantitatively determined line strengths are reported for 42 transitions observed in the axial absorption spectra at 10 K, and for 19 transitions observed in the ensuremath{pi}-polarized orthoaxial absorption spectra at 10 K. Fifty of these transitions originate from the ground crystal-field level of the $^{5}$${mathit{I}}_{8}$ (ground) multiplet, and eleven originate from the second crystal-field level (located 14 ${mathrm{cm}}^{mathrm{ensuremath{-}}1}$ above ground) of $^{5}$${mathit{I}}_{8}$." @default.
- W2049465550 created "2016-06-24" @default.
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- W2049465550 date "1990-08-15" @default.
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- W2049465550 title "Optical-absorption spectra, crystal-field energy levels, and transition line strengths of holmium in trigonal<mml:math xmlns:mml=http://www.w3.org/1998/Math/MathML display=inline><mml:mrow><mml:msub><mml:mrow><mml:mi mathvariant=normal>Na</mml:mi></mml:mrow><mml:mrow><mml:mn>3</mml:mn></mml:mrow></mml:msub></mml:mrow></mml:math>[Ho(<mml:math xmlns:mml=http://www.w3.org/1998/Math/MathML display=inline><mml:mrow><mml:msub><mml:mrow><mml:mi mathvariant=normal>C</mml:mi></mml:mrow><mml:…" @default.
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- W2049465550 doi "https://doi.org/10.1103/physrevb.42.3317" @default.
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