Abstract
THE limiting high frequency polarisability,α, of a solid is the algebraic sum of the optical, or electronic, polarisability, αe, of the ions or molecules, and the infrared polarisability, αIR, caused by the displacement, or vibration, of ions or molecules within the lattice. For most solids both αe and αIR are independent of volume and temperature, but for a number of ionic solids and for polymorphs of ice, αIR is not so. We describe the temperature dependence of αIR of hexagonal ice, and discuss it in terms of contributions from anharmonic effects.
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JOHARI, G., JONES, S. Infrared polarisability of hexagonal ice. Nature 263, 672–673 (1976). https://doi.org/10.1038/263672a0
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DOI: https://doi.org/10.1038/263672a0
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