VI族元素の圧力誘起分子解離 : 固体酸素のラマン分光 [in Japanese] Pressure-induced Molecular Dissociation in VIb Elements, O, S, Se, and Te : Raman Spectroscopy of Solid Oxygen [in Japanese]
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High-pressure Raman spectroscopy of solid oxygen has been carried out at room temperature up to 110 GPa in order to study the recently observed structural phase transition at 96 GPa. The vibron and lattice phonons of ε-phase corresponding to the transition became undetectable although the vibron wavenumber in ε-phase has shown a line pressure dependence with a coefficient of 2. 33 cm<SUP>-1</SUP>/GPa and reached 1753cm<SUP>-1</SUP> at 94 GPa. This result provided evidence that the structural transition is accompanied by a insulator-metal transition. The results have been discussed with a view to molecular dissociation comparing with those of the other Vlb elemental materials.
- The Review of High Pressure Science and Technology
The Review of High Pressure Science and Technology 5(3), 143-149, 1996-08-20
The Japan Society of High Pressure Science and Technology