Transferability of Crystal-Field Parameters for Rare-Earth Ions in Y2SiO5 Tested by Zeeman Spectroscopy

Abstract

Zeeman spectroscopy is used to demonstrate that phenomenological crystal-field parameters determined for the two C 1 point-group sites in Er 3+ :Y 2 SiO 5 may be transferred to other ions. The two crystallographic sixand seven-coordinate substitutional sites may be distinguished by comparing the spectra with crystal-field calculations. 1 arXiv:1811.00158v1 [cond-mat.mtrl-sci]

Prediction of optical polarization and high-field hyperfine structure via a parametrized crystal-field model for low-symmetry centers in Er3+ -doped Y2SiOJobbitt1, Wells2, Reid3 et al. 2021Phys. Rev. BSelf Cite11150View full textAdd to dashboardCite

“…Recently, crystal-field analyses have been performed for the C 1 symmetry centers in Ce 3+ , Er 3+ and Yb 3+ doped Y 2 SiO 5 [16][17][18][19]; with further analyses under way for Y 2 SiO 5 doped with Nd 3+ , Sm 3+ and Ho 3+ [20][21][22].…”

A Raman heterodyne determination of the magnetic anisotropy for the ground and optically excited states of Y$_{2}$SiO$_{5}$ doped with Sm$^{3+}$

“…In the case of Y 2 SiO 5 , the D 1 ,+b and D 1 ,-b directions in addition to the the D 2 ,+b and the D 2 ,-b directions are degenerate, therefore the average of the two g values were used in determining the g tensors. Preliminary crystal-field analyses performed on Sm 3+ :Y 2 SiO 5 have shown that the g values for the ground state are significantly smaller than those of the excited state in most directions, and therefore distinguishing their g values is trivial [18]. The exception to this are the g values in the D 2 , b and D 2 ,±b directions for site 2 where both the ground and excited states have g values significantly less than one.…”

“…Additionally, Sm 3+ has a multitude of isotopes with 71.2 % of all naturally occurring Sm 3+ possessing zero nuclear spin, and two isotopes, 147 Sm and 149 Sm, with natural abundances of 15.0 % and 13.8 % respectively, both have a nuclear spin of 7/2. This gives rise to the possibility of multiple ZEFOZ points within the Sm 3+ :Y 2 SiO 5 system for both of the non-zero nuclear spin isotopes [18].…”

Y2(Ge,Si)O5:Pr phosphors: multimodal temperature and pressure sensors shaped by bandgap management

“…As the ionic radius of Pr 3+ is B8.5% larger compared to Y 3+ it is expected and spectroscopically confirmed that Pr 3+ (as well as Ce 3+ ) occupy mainly the Y1 site whose coordination number and the RE-O distances are larger compared to Y2. 38,40,41 At low concentrations, the occupancy of the Y2 is negligible.…”