New insights on P-related paramagnetic point defects in irradiated phosphate glasses: Impact of glass network type and irradiation dose

Abstract : P-related paramagnetic point defects were studied in irradiated Yb-doped phosphate glasses by electron paramagnetic resonance spectroscopy (X and Q-bands). A strong impact of the glass network type on the defect nature is shown. In all glasses, r-POHC defects formation is in strong correlation with Q(2) tetrahedra amount supporting the structure of r-POHC. Ultra-phosphate glasses contain the larger defect type: Peroxy radicals, P-1, P-2, and P-4 defects whose formation is linked to Q(3) tetrahedra presence. In meta-phosphate and poly-phosphate glasses, peroxy radicals appear with r-POHC thermal recovery. In meta-phosphate glasses, a combination of P-1 and P-3 defects was evidenced for the first time, whereas in poly-phosphate glasses, only P-3 defects were identified. Dose effect as well as defect recovery were analyzed. (C) 2014 AIP Publishing LLC.
Type de document :
Article dans une revue
Journal of Applied Physics, American Institute of Physics, 2014, 116 (12), pp.123517. 〈10.1063/1.4896876〉
Liste complète des métadonnées

https://hal-polytechnique.archives-ouvertes.fr/hal-01087211
Contributeur : Gaëlle Bruant <>
Soumis le : mardi 25 novembre 2014 - 15:37:07
Dernière modification le : mercredi 25 avril 2018 - 10:45:01

Identifiants

Collections

Citation

V. Pukhkaya, F. Trompier, Nadège Ollier. New insights on P-related paramagnetic point defects in irradiated phosphate glasses: Impact of glass network type and irradiation dose. Journal of Applied Physics, American Institute of Physics, 2014, 116 (12), pp.123517. 〈10.1063/1.4896876〉. 〈hal-01087211〉

Partager

Métriques

Consultations de la notice

155