Paramagnetic defects in gamma-irradiated Na/K-silicate glasses / Zatsepin A. F.,Guseva V. B.,Vazhenin V. A.,Artoymov M. Yu. // PHYSICS OF THE SOLID STATE. - 2012. - V. 54, l. 9. - P. 1776-1784.

ISSN/EISSN:

1063-7834 / 1090-6460

Type:

Article

Abstract:

Gamma-irradiated alkali silicate glasses of the variable composition 22xNa(2)O center dot 22(1 - x)K2O center dot 3CaO center dot 75SiO(2) have been studied using the electron paramagnetic resonance (EPR) method. It has been established that, upon the successive replacement Na -> K in the two-alkali silicate glass, the EPR spectrum of hole centers on nonbridging oxygen atoms can be represented as a superposition of signals from the oxygen centers HC (1)(Na), HC (2)(Na), HC (1)(K), and HC (2)(K), which are characteristic of single-alkali silicate systems. The concentration dependences of hole and electron paramagnetic centers do not exhibit specific features that can be interpreted as a manifestation of the ``mixed-alkali effect.{''} The results obtained have been discussed taking into account the extended model of centers on nonbridging oxygen atoms.

Author keywords:

OXYGEN HOLE-CENTERS; MIXED-ALKALI; LI2O-NA2O-B2O3 GLASSES; PULSED CATHODOLUMINESCENCE; OPTICAL-ABSORPTION; EPR; RESONANCE; IONS

DOI:

10.1134/S1063783412090326

Web of Science ID:

ISI:000308360200006

Соавторы в МНС:

Другие поля

Поле	Значение
Month	SEP
Publisher	MAIK NAUKA/INTERPERIODICA/SPRINGER
Address	233 SPRING ST, NEW YORK, NY 10013-1578 USA
Language	English
EISSN	1090-6460
Keywords-Plus	OXYGEN HOLE-CENTERS; MIXED-ALKALI; LI2O-NA2O-B2O3 GLASSES; PULSED CATHODOLUMINESCENCE; OPTICAL-ABSORPTION; EPR; RESONANCE; IONS
Research-Areas	Physics
Web-of-Science-Categories	Physics, Condensed Matter
Author-Email	a.f.zatsepin@ustu.ru
ResearcherID-Numbers	Zatsepin, Anatoly/L-7335-2016
ORCID-Numbers	Zatsepin, Anatoly/0000-0001-9539-2403
Number-of-Cited-References	37
Usage-Count-Last-180-days	1
Usage-Count-Since-2013	26
Journal-ISO	Phys. Solid State
Doc-Delivery-Number	000AZ