Volume 124, Number 5, December 2018
|Number of page(s)||6|
|Section||Electromagnetism, Optics, Acoustics, Heat Transfer, Classical Mechanics, and Fluid Dynamics|
|Published online||27 December 2018|
EPR study of new E′ centers in neutron-irradiated α-quartz
1 Sobolev Institute of Geology and Mineralogy Siberian Branch Russian Academy of Sciences 630090 Novosibirsk, Russia
2 Department of Geological Sciences, University of Saskatchewan - Saskatoon, Saskatchewan, S7N 5E2, Canada
Received: 21 August 2018
Accepted: 21 November 2018
Electron paramagnetic resonance (EPR) of defects in neutron-irradiated natural α-quartz exposed to doses from 1016 to has been studied. New E′ centers and other defects have been revealed. The intensities of hole-like defects, including a novel triplet-state center, and E′-type centers in relation to neutron fluencies and post-irradiation annealing temperature have been investigated. For the new center the primary spin Hamiltonian parameter matrices g and A (29Si) (hyperfine interaction for 29Si) as well as the radiation dose dependence and thermal stability have been determined.
PACS: 42.70.Ce – Glasses, quartz / 61.72.J- – Point defects and defect clusters / 61.72.jd – Vacancies
© EPLA, 2018
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