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D the sound velocity is proportional to one over the

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Unformatted text preview: Which of the following scattering mechanisms occur in GaAs but not in Si? a) Acoustic deformation potential scattering. b) Optical deformation potential scattering. c) Ionized impurity scattering. d) Polar optical phonon scattering. e) None of the above. Lecture 9 Quiz: 1) How does the acoustic phonon (sound) velocity of a material, υ S , depend on the density (kg/m3) of the material? a) The sound velocity is proportional to the square root of the density. b) The sound velocity is proportional t...
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