Volume 128, Number 5, December 2019
|Number of page(s)||6|
|Section||Electromagnetism, Optics, Acoustics, Heat Transfer, Classical Mechanics, and Fluid Dynamics|
|Published online||30 January 2020|
Paramagnetic defects in neutron-irradiated α-quartz: Novel Al-associated E’ centers
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
3 Illinois EPR Research Center, University of Illinois at Urbana-Champaign - Urbana, IL, 61801, USA
Received: 4 September 2019
Accepted: 12 December 2019
Two new paramagnetic defects ( and ) have been revealed in neutron-irradiated natural -quartz by using electron paramagnetic resonance (EPR) spectroscopy. The EPR spectra of the center as well as a previously reported but incompletely characterized center demonstrate that their super-hyperfine structures arise from interaction with 27Al, the first-ever examples of Al-associated centers in crystalline quartz. The matrices g and , of , g and of the center, have been determined.
PACS: 42.70.Ce – Glasses, quartz / 61.72.J- – Point defects and defect clusters / 61.72.jd – Vacancies
© EPLA, 2020
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