Pressure dependence of the optical phonon in solid hydrogen and deuterium up to 230 kbar
- 15 April 1983
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 27 (8), 5084-5087
- https://doi.org/10.1103/physrevb.27.5084
Abstract
We have studied the transverse-optical phonon by means of Raman scattering in solid molecular hydrogen and deuterium at pressures up to 230 kbar at 5 K in a diamond anvil cell. With the use of a self-consistent phonon calculation which incorporates anharmonic corrections to the self-energy, phonon frequencies were calculated using an isotropic inter-molecular pair potential. Deviations between theory and experiment point to deficiencies in the potential. The present experimental data can be used as a test on the isotropic part of the intermolecular potential of the solid.
Keywords
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