RELAXATION MECHANISM OF FREE-RADICALS IN SILICA GLASS STUDIED BY PULSED-ESR SPECTROSCOPY

Authors
MIZUTA Y KOHNO M FUJII K
Citation
Y. Mizuta et al., RELAXATION MECHANISM OF FREE-RADICALS IN SILICA GLASS STUDIED BY PULSED-ESR SPECTROSCOPY, JPN J A P 1, 33(4A), 1994, pp. 1885-1889
Citations number
14
Categorie Soggetti
Physics, Applied
Journal title
JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS SHORT NOTES & REVIEW PAPERS → ACNP
Volume
33
Issue
4A
Year of publication
1994
Pages
1885 - 1889
Database
ISI
SICI code
Abstract
The defects in gamma-irradiated silica glass were investigated using t he pulsed ESR technique. By exciting the spin packets both selectively and nonselectively, it was found that spin relaxation was induced mai nly by the dipole-dipole interaction between electron spins of the ide ntical species. By analyzing the dipole-dipole interaction between ele ctron spins, the flip-flop phenomenon between them was found to be the main cause of electron spin relaxation.