Model for the 12.0-mT hydrogen hyperfine doublet in silica

1 January 1989

journal article
research article
Published by American Physical Society (APS) in Physical Review B

Vol. 39 (1) , 705-707
https://doi.org/10.1103/physrevb.39.705

Abstract

The study of the temperature dependence of the 12.0-mT hydrogen EPR hyperfine doublet in wet and dry silica, between 120 and 300 K, has shown a reversible variation of the number of defects, inversely proportional to an intensity change of the signal attributed to the holes trapped at substitutional aluminum sites. This correlation suggests a model of the point defect responsible for the 12.0-mT EPR signal: The H atom is close to an Al atom and two different alternative electronic configurations are possible, depending on the temperature.

Keywords

This publication has 18 references indexed in Scilit:

Defects dynamics in as-grown and electrodiffused quartz: An interpretation of the predose effect
Journal of Applied Physics, 1987
ESR studies of damage processes in X-irradiated high purity a-SiO2:OH and characterization of the formyl radical defect
The Journal of Chemical Physics, 1983
$E^{'}$ center in glassy Si $O_{2}$ : ${}^{17}O$ , ${}^{1}H$ , and "very weak" ${}^{29}{Si}$ superhyperfine structure
Physical Review B, 1980
EPR study of the E′4 center in α-quartz
Solid State Communications, 1979
ESR studies of hydrogen hyperfine spectra in irradiated vitreous silica
Journal of Applied Physics, 1978
A new concept of the model for the paramagnetic E′‐centre in the SiO_2−x system
Physica Status Solidi (b), 1978
Hyperfine interactions in high‐silicate and quartz glasses
Physica Status Solidi (b), 1975
Observation and analysis of the primary 29Si hyperfine structure of the E′ center in non-crystalline SiO2
Solid State Communications, 1974
Electron Spin Resonance of Irradiated Quartz: Atomic Hydrogen
The Journal of Chemical Physics, 1965
Paramagnetic Spectra of ${E_{2}}^{'}$ Centers in Crystalline Quartz
Physical Review B, 1963