Paramagnetic hole centres produced in germanium-doped crystalline quartz by X-irradiation at 4K
- 30 September 1985
- journal article
- Published by IOP Publishing in Journal of Physics C: Solid State Physics
- Vol. 18 (27), L849-L853
- https://doi.org/10.1088/0022-3719/18/27/001
Abstract
Paramagnetic resonance studies of SiO2:Ge crystals X-irradiated in a microwave cavity at 4K show a dominant hole centre stable below 35K. It is suggested that the hole is stabilised in an oxygen 2p orbital by a nearby germanium atom and that germanium is an amphoteric impurity in quartz. The relevance of the measurements to the mobility of hole polarons in crystalline quartz is discussed.Keywords
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