Theoretical Temperature-Dependent Phonon Spectra of Solid Neon
- 14 April 1969
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 22 (15) , 777-780
- https://doi.org/10.1103/physrevlett.22.777
Abstract
Recent measurements of the temperature dependence of phonon energies in solid neon do not agree with the results of previous theoretical treatments. This discrepancy is remedied here with a calculation of the one-phonon Green's function by a perturbative method which includes the leading corrections to the lowest order self-consistent phonon theory. The renormalized phonon energy is then identified with the peak of the imaginary part of the Green's function.Keywords
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