Identification of the relative distribution of rare-earth ions in phosphate glasses.
Phys Rev Lett
; 90(18): 185501, 2003 May 09.
Article
en En
| MEDLINE
| ID: mdl-12786018
ABSTRACT
The relative distribution of rare-earth ions R3+ (Dy3+ or Ho3+) in the phosphate glass RAl(0.30)P(3.05)O(9.62) was measured by employing the method of isomorphic substitution in neutron diffraction. It is found that 7.9(7) R-R nearest neighbors reside at 5.62(6) A in a network made from interlinked PO4 tetrahedra. Provided that the role of Al is explicitly considered, a self-consistent account of the local matrix atom correlations can be developed in which there are 1.68(9) bridging and 2.32(9) terminal oxygen atoms per phosphorus.
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Bases de datos:
MEDLINE
Tipo de estudio:
Diagnostic_studies
Idioma:
En
Revista:
Phys Rev Lett
Año:
2003
Tipo del documento:
Article
País de afiliación:
Reino Unido