التفاصيل البيبلوغرافية
| العنوان: |
Theoretical and Structural Study of Axial Symmetry Ce3+ Centers in the BaWO4 Single Crystal Doped with Cerium and Codoped with Sodium Ions |
| المؤلفون: |
Tomasz Bodziony |
| المصدر: |
Materials; Volume 15; Issue 16; Pages: 5749 |
| بيانات النشر: |
Multidisciplinary Digital Publishing Institute |
| سنة النشر: |
2022 |
| المجموعة: |
MDPI Open Access Publishing |
| مصطلحات موضوعية: |
electron paramagnetic resonance (EPR), crystal field theory, spin Hamiltonian, tetragonal symmetry, BaWO 4, Ce 3+, Na + |
| الوصف: |
The spin–Hamiltonian parameters g–factors (g|| and g⊥) of the Ce3+ paramagnetic centers in BaWO4: Ce and BaWO4: Ce, Na single crystals with axial symmetry are investigated using the superposition model (SPM) via complete diagonalization procedure of energy matrix (CDM method). The calculated g–factors are in reasonable agreement with the experimental values. The fitted intrinsic parameters are comparable with data from other publications for rare-earth paramagnetic centers in a similar environment. The angular distortions of the cerium dodecahedron [CeO8] are also studied. Structural analysis of paramagnetic centers with axial symmetry through the postulated cerium barium tetrahedron [CeBa4] connected via oxygens bridges was carried out. The mechanism of the charge compensation and the role of the second dopant (Na+) is also discussed. |
| نوع الوثيقة: |
text |
| وصف الملف: |
application/pdf |
| اللغة: |
English |
| Relation: |
Advanced Materials Characterization; https://dx.doi.org/10.3390/ma15165749 |
| DOI: |
10.3390/ma15165749 |
| الاتاحة: |
https://doi.org/10.3390/ma15165749 |
| Rights: |
https://creativecommons.org/licenses/by/4.0/ |
| رقم الانضمام: |
edsbas.D19AA729 |
| قاعدة البيانات: |
BASE |