Magnetic-field-enhanced outgoing excitonic resonance in multi-phonon Raman scattering from polar semiconductors

6533b7defe1ef96bd1275caf

RESEARCH PRODUCT

Magnetic-field-enhanced outgoing excitonic resonance in multi-phonon Raman scattering from polar semiconductors

S. T. Pavlov V. I. Belitsky Manuel Cardona Andrés Cantarero I. G. Lang A. V. Prokhorov

subject

Physics Condensed Matter::Other Phonon Scattering Exciton Condensed Matter (cond-mat)Continuum (design consultancy)FOS: Physical sciences Condensed Matter Condensed Matter::Mesoscopic Systems and Quantum Hall Effect Condensed Matter Physics Molecular physics Resonance (particle physics)Magnetic field Condensed Matter::Materials Science symbols.namesake symbols Polar General Materials Science Raman scattering

description

A combined scattering mechanism involving the states of free electron-hole pairs (exciton continuum) and discrete excitons as intermediate states in the multi-phonon Raman scattering leads to (1) a strong increase of the scattering efficiency in the presence of a high magnetic field and to (2) an outgoing excitonic resonance: the two features are not compatible when only free pairs (leading to a strong increase of the scattering efficiency under the applied magnetic field) or discrete excitons (resulting in the outgoing resonance at the excitonic gap) are taken into account.

year	journal	country	edition	language
1996-02-21	Journal of Physics: Condensed Matter

https://doi.org/10.1088/0953-8984/8/36/027

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