Crystal fields and dopant-ligand separations in cubic centres of rare-earth ions in fluorites
Open accessAbstract
Phenomenological crystal-field parameters were calculated from spectroscopic data for Eu 3+ , Dy 3+ and Er 3+ in cubic sites in a number of fluorite-structure hosts. These values, and similar data from other calculations, were used to obtain, with the help of a semiempirical modelling procedure, the dopant-ligand distances in the corresponding centres. It is confirmed that significant local lattice collapse does take place in these centres. The final dopant-ligand distances calculated in this investigation compare favourably with relevant information collected by other methods.
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At least one example, the cubic centre in the Eu3+:PbF2 system [21], clearly illustrates the limitations of the suitably modified electrostatic effective charge model.
“with at least one example (the cubic centre in the Eu3+: PbF, system [21]) clearly illustrating the limitations of such a model.”
From Crystal fields and microscopic local structures of some trigonal symmetry centres in fluorite crystals doped with trivalent rare-earth ions (1992) · cites this paper as [21]
The results of this study, as well as analogous work on the tetragonal [15,19] and cubic [21] centres in RE3+: fluorite systems, give clear support to the view that a suitably modified electrostatic effective charge model may still be of some use in analysing rare-earth crystal field spectra.
“The results of this study, as well as analogous work on the tetragonal [IS,191 and cubic [Zl] centres in RE^': fluorite systems give clear support to the view that a suitably modified electrostatic effective charge model may still be of some use in analysing rareearth crystal field spectra.”
From Crystal fields and microscopic local structures of some trigonal symmetry centres in fluorite crystals doped with trivalent rare-earth ions (1992) · cites this paper as [21]
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Flagged first, then by citations
Research works printed but not linked: 3
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Cited by
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Lesniak, K., & Richardson, F. S. (1992) · Journal of Physics: Condensed Matter · doi:10.1088/0953-8984/4/7/012 · Cited by 4 · see citing works
Self-citation
- Authors
- Lesniak, K.
- Affiliations
- Institute of Physics (PL)
- Corresponding author
- Lesniak, K
- Venue
- Journal of Physics: Condensed Matter
- Publisher
- IOP Publishing
- Published
- 1990-06-25
- Volume
- 2
- Issue
- 25
- Pages
- 5563-5574
- ISSN
- 0953-8984 (ISSN-L)
- 1361-648X
- OpenAlex
- W2066815427
- Cited by
- 16
- References
- 31
- Citations by year
- 2022: 1 · 2020: 1 · 2015: 2 · 2013: 1 · 2012: 1
- FWCI
- 1.18
- Type
- journal article
- Language
- en
- Open access
- bronze
- doi.org
- Locations
- Journal of Physics Condensed Matter (publishedVersion)
- Topics
- Physical Sciences › Materials Science › Materials Chemistry › Luminescence Properties of Advanced Materials
- Physical Sciences › Materials Science › Materials Chemistry › Solid-state spectroscopy and crystallography
- Physical Sciences › Materials Science › Materials Chemistry › Lanthanide and Transition Metal Complexes
- Keywords
- crystal field parameters, rare-earth ions, fluorite structure, Eu3+, Dy3+, Er3+, luminescence centers
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