INFRARED ABSORPTION IN SOLID ORTHO-ENRICHED HYDROGEN
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Date
1968
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Ohio State University
Abstract
Absorption in the region from $4000 cm^{-1}$ to $5000 cm^{-1}$ (the fundamental vibrational band) has been recorded for the case of solid 92% orthohydrogen. At temperatures below the hcp-fcc phase transition part of the absorption is associated with the creation of ``spin-wave'' excitations which correspond to the propagation of disturbances in the state of orientational order of the ortho molecules.
Description
Author Institution: McLennan Physical Laboratories, University of Toronto; Department of Physics, University of British Columbia