Rare-Earths Centers (Sm{sup 3+}, Eu{sup 3+}, Yb{sup 3+}) in MeF{sub 2}(Me = Ca, Sr, Ba, Cd) Crystals

Journal Article · Wed Aug 04 00:00:00 EDT 2010 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.3482243· OSTI ID:21454834

Nikiforov, A E; Chernyshev, V A; Volodin, V P ^[1]; Avram, N M ^[2]; Avram, C N; Vaida, M ^[2]

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1. Ural State University, 620083-Ekaterinburg, Lenin av. 51 (Russian Federation)
2. West University of Timisoara, Dept. of Physics, 300223-Timisoara, Bd. V. Parvan No. 4 (Romania)

Rare-earth elements RE{sup 3+}(RE = Sm, Eu, Yb) form impurity centers in fluorite-like crystals MeF{sub 2}(Me = Ca, Sr, Ba, Cd). The crystal structure of cubic, trigonal and tetragonal centers in MeF{sub 2} has been investigated in the framework of shell model and pair potential approximation. The crystal field parameters were calculated with the exchange charges model, using the optimized geometry of the doped host matrix. With these parameters we have been calculated the optical spectra and spin-Hamiltonian (g-factors) of RE{sup 3+} in MeF{sub 2}, for some combination of R{sup 3+} and MeF{sup 2}. The obtained results were discussed and comparison with experimental data was made. A good agreement confirms the method and model of calculations.

• OSTI ID: 21454834
• Journal Information: AIP Conference Proceedings, Vol. 1262, Issue 1; Conference: TIM-09: Physics conference, Timisoara (Romania), 27-28 Nov 2010; Other Information: DOI: 10.1063/1.3482243; (c) 2010 American Institute of Physics; ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
ABSORPTION SPECTRA
CADMIUM FLUORIDES
CALCIUM FLUORIDES
CHARGE EXCHANGE
COMPARATIVE EVALUATIONS
CRYSTAL FIELD
CRYSTALS
CUBIC LATTICES
DOPED MATERIALS
EUROPIUM IONS
HAMILTONIANS
HARMONIC GENERATION
LANDE FACTOR
RHENIUM IONS
SAMARIUM IONS
SHELL MODELS
TETRAGONAL LATTICES
YTTERBIUM IONS
ALKALINE EARTH METAL COMPOUNDS
CADMIUM COMPOUNDS
CADMIUM HALIDES
CALCIUM COMPOUNDS
CALCIUM HALIDES
CHARGED PARTICLES
CRYSTAL LATTICES
CRYSTAL STRUCTURE
DIMENSIONLESS NUMBERS
EVALUATION
FLUORIDES
FLUORINE COMPOUNDS
FREQUENCY MIXING
HALIDES
HALOGEN COMPOUNDS
IONS
MATERIALS
MATHEMATICAL MODELS
MATHEMATICAL OPERATORS
NUCLEAR MODELS
QUANTUM OPERATORS
SPECTRA