Quick search Find article
Quick search
Find article

Theory of inelastic light scattering of itinerant electron ferromagnets

S Coutinho and D R Tilley

Show affiliations


Raman scattering in a reflection experiment is discussed. It is assumed that coupling to spin flip excitations occurs due to spin-orbit coupling, as in an insulator. Within the tight binding approximation, the polarization selection rules contain one term from single site processes which has the same form as in an insulator, and one from neighbouring site processes which may be different. If the first term is dominant, the vertex coupling the excitations to the incident and scattered light is only weakly momentum dependent and scattering by the stoner excitations is much weaker than magnon scattering. The magnon line is broadened because of the finite skin depth of light in the specimen; for nickel this broadening is greater than the intrinsic linewidth as observed in ferromagnetic resonance experiments.


PACS

78.30.-j Infrared and Raman spectra

75.30.Ds Spin waves

75.50.-y Studies of specific magnetic materials

75.10.Lp Band and itinerant models

71.70.Ej Spin-orbit coupling, Zeeman and Stark splitting, Jahn-Teller effect

75.30.Et Exchange and superexchange interactions

Subjects

Condensed matter: electrical, magnetic and optical

Dates

Issue 5 (May 1975)



Related review articles

What's this?
View review articles related to this research to gain an insight into the key trends in this subject area. Related review articles are selected based on PACS/MSC codes, and are no more than three years old.

  1. Optical properties across the insulator to metal transitions in vanadium oxide compounds

View by subject




Export








Please login to access our web services, or create an account if you don't yet have one.

You must have cookies enabled in your web browser to be able to login.

Username
Password

Forgotten your password? Get a new one here.