Infrared Spectra of D_2O Ice under Pressure
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Infrared absorption spectra of D<SUB>2</SUB>O ice were measured up to 140 GPa. The O-D stretching frequency rapidly decreases with pressure toward zero. The transition pressure, which could be defined as a pressure where the stretching frequency becomes zero, in D<SUB>2</SUB>O ice was determined to be 94 GPa. This transition pressure is higher by 26 GPa than that in H<SUB>2</SUB>O ice. A large difference in the transition pressure may be attributed to anharmonic contribution to the potential and consequently to the stretching vibrations.
- The Review of High Pressure Science and Technology
The Review of High Pressure Science and Technology 7, 1135-1137, 1998
The Japan Society of High Pressure Science and Technology