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Title: Crystal field parameters and energy levels scheme of trivalent chromium doped BSO

The aim of this paper is to give an analysis of crystal field parameters and energy levels schemes for the above doped material, in order to give a reliable explanation for experimental data. The crystal field parameters have been modeled in the frame of Exchange Charge Model (ECM) of the crystal field theory, taken into account the geometry of systems, with actually site symmetry of the impurity ions. The effect of the charges of the ligands and covalence bonding between chromium cation and oxygen anions, in the cluster approach, also were taken into account. With the obtained values of the crystal field parameters we simulated the scheme of energy levels of chromium ions by diagonalizing the matrix of the Hamiltonian of the doped crystal. The obtained energy levels and estimated Racah parameters B and C were compared with the experimental spectroscopic data and discussed. Comparison with experiment shows that the results are quite satisfactory which justify the model and simulation scheme used for the title system.
Authors:
 [1] ;  [2] ;  [3]
  1. Shumen University Konstantin Preslavsky, 115 Universitetska street, 9712 Shumen (Bulgaria)
  2. Department of Physics, West University of Timisoara, Bd. V. Parvan No. 4, 300223 Timisoara (Romania)
  3. Department of Physics, West University of Timisoara, Bd. V. Parvan No. 4, 300223 Timisoara, Romania and Academy of Romanian Scientists, Independentei 54, 050094-Bucharest (Romania)
Publication Date:
OSTI Identifier:
22390731
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Conference Proceedings; Journal Volume: 1634; Journal Issue: 1; Conference: TIM-13 Physics Conference, Timisoara (Romania), 21-24 Nov 2013; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; ANIONS; BISMUTH SULFATES; CATIONS; CHARGE EXCHANGE; CHROMIUM IONS; COMPARATIVE EVALUATIONS; COVALENCE; CRYSTAL FIELD; CRYSTALS; DOPED MATERIALS; ENERGY LEVELS; HAMILTONIANS; LIGANDS; OXYGEN