Mikhail G. BRIK1, Nicolae M. AVRAM2, Calin N. AVRAM3
Abstract. The exchange charge model of crystal field was used to calculate the crystal field splitting of all Ni 2+ energy levels (3d 8 electron configuration) in three structurally similar crystals of CdCl2, CdBr2, and CdI2. The influence of the nature of the ligands and interionic
distances on the values of the crystal field parameters and location of the split energy levels and relative intervals between them was identified. Comparison of the calculated energy levels with the experimental results available in the literature yielded good agreement.
Keywords: Crystal field theory; Transition metal ions; Crystal field strength; Racah parameters.
DOI 10.56082/annalsarsciphyschem.2021.1.19
1Prof., Dr. hab., College of Sciences & CQUPT-BUL Innovation Institute, Chongqing University of Posts and Telecommunications, Chongqing, 400065, People’s Republic of China; Institute of Physics, University of Tartu, W. Ostwaldi Str. 1, Tartu, 50411, Estonia; Institute of Physics, Jan
Dlugosz University, PL-42200, Czestochowa, Poland, (e-mail: mikhail.brik@ut.ee).
2Prof., PhD, Department of Physics, West University of Timisoara, Bd. V. Parvan, No. 4, 300223, Timisoara, Romania and Academy of Romanian Scientist, Independentei 54, 050094, Bucharest, Romania (e-mail: n1m2marva@yahoo.com).
3 Assistant Prof., PhD, Department of Physics, West University of Timisoara, Bd. V. Parvan, No. 4, 300223, Timisoara, Romania (e-mail: calin.avram@e-uvt.ro).
PUBLISHED in Annals of the Academy of Romanian Scientists Series on Physics and Chemistry, Volume 6, No1