Computation of Raman-Scattering Cross Sections in Rare-Gas Crystals. II. Helium
Phys. Rev. B 4, 1324 – Published 15 August, 1971
DOI: https://doi.org/10.1103/PhysRevB.4.1324
Abstract
One- and two-phonon Raman-scattering efficiencies are computed for the hcp phase of solid helium, following a theoretical model used previously for neon and argon. Attention is given to the dependence of the efficiencies on photon polarizations, photon energy loss, and crystal density. Two-phonon efficiencies are also computed for the bcc phase, and critical points are identified.