| Revue: | Revista mexicana de física |
| Base de datos: | PERIÓDICA |
| Número de sistema: | 000446971 |
| ISSN: | 0035-001X |
| Autores: | Dong, H.N1 Zhang, R1 |
| Instituciones: | 1Chengdu Normal University, Chengdu, Sichuan. China |
| Año: | 2021 |
| Periodo: | Ene-Feb |
| Volumen: | 67 |
| Número: | 1 |
| Paginación: | 1-6 |
| País: | México |
| Idioma: | Inglés |
| Tipo de documento: | Artículo |
| Enfoque: | Analítico, descriptivo |
| Resumen en inglés | The electron paramagnetic resonance (EPR) parameters and local structures for Cu2+ in (100-2x)TeO2-xAg2O-xWO3(TAW) (7.5 ≤ x ≤ 30 mol%) glasses are quantitatively studied for distinct modifier concentrations x. The octahedral Cu2+ centers are subject to the medium tetragonal elongations of about 2% along the C4 axis due to the Jahn-Teller effect. By utilizing only three adjusted coefficients a, b, and w, the quantities (Dq, k, τ and κ) can be suitably characterized by the Fourier type functions, which reasonably account for the experimental concentration dependences of the d-d transition bands and EPR parameters. The calculation results are discussed, and the mechanisms of the above concentration dependences of these quantities are illustrated by the modifications of the local structures and the electron cloud distribution around the Cu2+ dopant with the variations of the concentration x |
| Disciplinas: | Física y astronomía |
| Palabras clave: | Electromagnetismo, Cu(II), Vidrio, Estructuras de defectos, Resonancia paramagnética, Electrones |
| Keyword: | Electromagnetism, Cu(II), Glasses, Defect structures, Paramagnetic resonance, Electrons |
| Texte intégral: | Texto completo (Ver HTML) Texto completo (Ver PDF) |
