Electron scattering of light in superconductors

Electron Raman scattering of light has been observed recently in many high-temperature superconductors. At temperatures below the critical value there is a clear reduction in the scattering cross section at low transferred frequencies. In contrast to the theoretical predictions, there is no threshold which could be linked to the gap in the electron spectrum. This behavior of the scattering, and particularly its dependence on the transferred frequency, can be explained if we assume that the gap vanishes along certain lines on the Fermi surface.

PACS: 74.25.Gz, 78.30.Hv, 74.72.Bk, 74.62.−c, 74.25.Jb, 71.18.+y (all)
DOI: 10.1070/PU1990v033n04ABEH002575
URL: https://ufn.ru/en/articles/1990/4/c/
Citation: Fal’kovskii L A "Electron scattering of light in superconductors" Sov. Phys. Usp. 33 (4) 296–298 (1990)

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TY JOUR
TI Electron scattering of light in superconductors
AU Fal’kovskii, L. A.
PB Physics-Uspekhi
PY 1990
JO Physics-Uspekhi
JF Physics-Uspekhi
JA Phys. Usp.
VL 33
IS 4
SP 296-298
UR https://ufn.ru/en/articles/1990/4/c/
ER https://doi.org/10.1070/PU1990v033n04ABEH002575

Оригинал: Фальковский Л А «Электронное рассеяние света в сверхпроводниках» УФН 160 (4) 71–75 (1990); DOI: 10.3367/UFNr.0160.199004d.0071