ZhETF, Vol. 146,
No. 3,
p. 657 (September 2014)
(English translation - JETP,
Vol. 119, No. 3,
p. 579,
September 2014
available online at www.springer.com
)
EFFECT OF ELECTRON-PHONON INTERACTIONS ON RAMAN LINE AT FERROMAGNETIC ORDERING
Falkovsky L.A.
Received: April 3, 2014
DOI: 10.7868/S0044451014090260
The theory of Raman scattering in half-metals by optical phonons interacting with conduction electrons is developed. We evaluate the effect of electron-phonon interactions at ferromagnetic ordering in terms of the Boltzmann equation for carriers. The chemical potential is found to decrease as the temperature decreases. Both the linewidth and frequency shift exhibit a dependence on temperature.
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