High pressure x-ray diffraction study of the volume collapse in Ba24Si100 clathrate
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Raman and x-ray diffraction studies of Ba doped germanium clathrate Ba8Ge43 at high pressures
High-pressure Raman and x-ray diffraxtion XRD measurements of a defect clathrate Ba8Ge43 3 have been carried out at room temperature up to 40 GPa. Three vibrational modes associated with guest Ba atoms were observed in the low-frequency region, and the structureless spectrum due to Ge vacancies was found in the framework vibrational region. The Raman spectra shows a pressure-induced phase trans...
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تاریخ انتشار 2017