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

Abstract

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.

Authors:
; ;  [1];  [2]; ;  [2]
  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)
Publication Date:
OSTI Identifier:
21454834
Resource Type:
Journal Article
Journal Name:
AIP Conference Proceedings
Additional Journal Information:
Journal Volume: 1262; Journal 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; Journal ID: ISSN 0094-243X
Country of Publication:
United States
Language:
English
Subject:
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

Citation Formats

Nikiforov, A E, Chernyshev, V A, Volodin, V P, Avram, N M, Academy of Romanian Scientists, Independentei 54, 050094-Bucharest, Avram, C N, and Vaida, M. Rare-Earths Centers (Sm{sup 3+}, Eu{sup 3+}, Yb{sup 3+}) in MeF{sub 2}(Me = Ca, Sr, Ba, Cd) Crystals. United States: N. p., 2010. Web. doi:10.1063/1.3482243.
Nikiforov, A E, Chernyshev, V A, Volodin, V P, Avram, N M, Academy of Romanian Scientists, Independentei 54, 050094-Bucharest, Avram, C N, & Vaida, M. Rare-Earths Centers (Sm{sup 3+}, Eu{sup 3+}, Yb{sup 3+}) in MeF{sub 2}(Me = Ca, Sr, Ba, Cd) Crystals. United States. https://doi.org/10.1063/1.3482243
Nikiforov, A E, Chernyshev, V A, Volodin, V P, Avram, N M, Academy of Romanian Scientists, Independentei 54, 050094-Bucharest, Avram, C N, and Vaida, M. 2010. "Rare-Earths Centers (Sm{sup 3+}, Eu{sup 3+}, Yb{sup 3+}) in MeF{sub 2}(Me = Ca, Sr, Ba, Cd) Crystals". United States. https://doi.org/10.1063/1.3482243.
@article{osti_21454834,
title = {Rare-Earths Centers (Sm{sup 3+}, Eu{sup 3+}, Yb{sup 3+}) in MeF{sub 2}(Me = Ca, Sr, Ba, Cd) Crystals},
author = {Nikiforov, A E and Chernyshev, V A and Volodin, V P and Avram, N M and Academy of Romanian Scientists, Independentei 54, 050094-Bucharest and Avram, C N and Vaida, M},
abstractNote = {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.},
doi = {10.1063/1.3482243},
url = {https://www.osti.gov/biblio/21454834}, journal = {AIP Conference Proceedings},
issn = {0094-243X},
number = 1,
volume = 1262,
place = {United States},
year = {Wed Aug 04 00:00:00 EDT 2010},
month = {Wed Aug 04 00:00:00 EDT 2010}
}