Crystal structures of the low-temperature quartz-type phases of SiO2 and GeO2 at elevated pressure
作者： J. Glinnemann , H. E. King , H. Schulz , Th. Hahn , S. J. La Placa
DOI: 10.1524/ZKRI.1992.198.3-4.177
关键词:
摘要: Lattice parameters and crystal structures of the low temperature quartz-type (low-quartz) forms (space group P3 1 21) SiO 2 GeO were refined from single X-ray diffraction data under hydrostatic pressures up to 10.2GPa for 5.57GPa . R W (F) values range 5%. -quartz is an almost perfect high-pressure model -quartz:At 10GPa geometry structure approaches that at ambient pressure.
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