2-dimensional polar metals: a low-frequency Raman scattering study
نویسندگان
چکیده
منابع مشابه
Raman scattering and the low-frequency vibrational spectrum of glasses.
We present a theory of low-frequency Raman scattering in glasses, based on the concept that light couples to the elastic strains via spatially fluctuating elasto-optic (Pockels) constants. We show that the Raman intensity is not proportional to the vibrational density of states (as was widely believed), but to a convolution of Pockels constant correlation functions with the dynamic strain susce...
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A deficiency is pointed out in Stevenson's method of reducing the solution of electromagnetic scattering problems to a succession of standard potential problems whose solutions determine terms in the low frequency expansion of the scattered field. An alternate approach is presented, for perfectly conducting scatterers, which not only removes the difficulty but also is simpler and more explicit ...
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ژورنال
عنوان ژورنال: 2D materials
سال: 2021
ISSN: ['2053-1583']
DOI: https://doi.org/10.1088/2053-1583/ac2245