Effect of Nonpolar Optical Phonon Scattering on Free-Carrier Absorption in Quantizing Magnetic Fields
PHONON SCATTERING IN CONDENSED MATTER VII: PROCEEDINGS OF THE SEVENTH INTERNATIONAL CONFERENCE(1993)
Abstract
A quantum theory for the free-carrier absorption of semiconductors to take into account the nonpolar optical phonon scattering in a semiconductor such as germanium has been studied for electrons in a parabolic energy band [1]. In quantizing magnetic fields, different scattering mechanisms give rise to different magnetic-field dependences of the scattering rates [2]. In the present work, we shall study the effect of nonpolar optical phonon scattering on the free-carrier absorption with a nonparabolic energy band of n-type nondegenerate semiconductors such as germanium.
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Key words
Magnetic Field, Energy Band, Optical Phonon, Gallium Arsenide, Landau Gauge
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