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Temperature and frequency dependence of the spin-lattice relaxation times of E ′ 1 centers in neutron-irradiated quartz glass

Temperature and frequency dependence of the spin-lattice relaxation times of E ′ 1 centers in... Results are reported for measurements of the spin-lattice relaxation times of E ′ 1 centers in quartz glass, produced by neutron irradiation, with the measurements made at two frequencies 9.25 and 24.0 GHz over a wide temperature interval 1.5–300 K. The experimental data are interpreted on the basis of interaction mechanisms of the spins with two-level systems with excitation energies ∼6, ∼26, and ∼420 cm −1 . A small modification of the existing theory allows us to explain a number of features of the observed temperature and frequency dependence of the relaxation rate. The results are compared with the data available in the literature on spin-lattice relaxation of irradiation centers in crystalline quartz and quartz glass. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Physics of the Solid State Springer Journals

Temperature and frequency dependence of the spin-lattice relaxation times of E ′ 1 centers in neutron-irradiated quartz glass

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References (9)

Publisher
Springer Journals
Copyright
Copyright © 1997 by American Institute of Physics
Subject
Physics; Solid State Physics and Spectroscopy
ISSN
1063-7834
eISSN
1090-6460
DOI
10.1134/1.1130041
Publisher site
See Article on Publisher Site

Abstract

Results are reported for measurements of the spin-lattice relaxation times of E ′ 1 centers in quartz glass, produced by neutron irradiation, with the measurements made at two frequencies 9.25 and 24.0 GHz over a wide temperature interval 1.5–300 K. The experimental data are interpreted on the basis of interaction mechanisms of the spins with two-level systems with excitation energies ∼6, ∼26, and ∼420 cm −1 . A small modification of the existing theory allows us to explain a number of features of the observed temperature and frequency dependence of the relaxation rate. The results are compared with the data available in the literature on spin-lattice relaxation of irradiation centers in crystalline quartz and quartz glass.

Journal

Physics of the Solid StateSpringer Journals

Published: Aug 1, 1997

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