Theory of Raman scattering on normal metals with impurities
- 1 December 1990
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 42 (16), 10732-10734
- https://doi.org/10.1103/physrevb.42.10732
Abstract
The Raman spectrum is calculated for a simple metal with nonmagnetic impurities in the zero-momentum-transfer limit. The Raman scattering is due to electron-hole excitations. The effect of the impurities is in the fluctuation of the electron distribution between different parts of the Fermi surface, which results in overdamped zero-sound channel modes of different symmetries. Analogous phenomena have already been observed in semiconductors. Comparison with the recent theory of Falkovsky is also made.Keywords
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