EPR OF A HYDROGEN/DOUBLE-LITHIUM CENTRE IN α-QUARTZ

dc.contributor.author	Lees N.S.
dc.contributor.author	Walsby C.J.
dc.contributor.author	Williams J.A.S.
dc.contributor.author	Weil J.A.
dc.contributor.author	Claridge R.F.C.
dc.date.accessioned	2022-02-13T04:46:03Z
dc.date.available	2022-02-13T04:46:03Z
dc.date.issued	2003
dc.identifier	https://elibrary.ru/item.asp?id=5085797
dc.identifier.citation	Physics and Chemistry of Minerals, 2003, 30, 3, 131-141
dc.identifier.issn	0342-1791
dc.identifier.uri	https://repository.geologyscience.ru/handle/123456789/35241
dc.description.abstract	X-band electron paramagnetic resonance experiments on a gamma-irradiated α-quartz crystal have revealed a new hydrogarnet-like defect. Analysis of the spectral data suggests that the centre consists of an oxygenic electron hole adjacent to a silicon vacancy, charge-compensated by a proton and two lithium +1 ions. The principal directions of the spin-Hamiltonian g matrix indicate that the oxygenic hole occurs on the oxygen ion that would be long-bonded to the missing silicon atom. Modelling of the proton and lithium hyperfine matrices via three different methods has provided a detailed physical view for the structure of the defect centre, which is presented here.
dc.subject	Tonian
dc.title	EPR OF A HYDROGEN/DOUBLE-LITHIUM CENTRE IN α-QUARTZ
dc.type	Статья
dc.subject.age	Precambrian::Proterozoic::Neoproterozoic::Tonian
dc.subject.age	Докембрий::Протерозой::Неопротерозойская::То́ний	ru

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