Quasi-elastic and inelastic approximations in the description of the charge carrier dynamics in diamond
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The differences between the quasi-elastic and inelastic approximations in calculating the carrier mobility in diamond is numerically estimated for the spatially uniform and one-dimensional cases. Data on the steady-state mobility at 20 K in the quasi-elastic and inelastic approximations differ by a factor of about 6. In the one-dimensional case for a time-constant carrier source located deep inside the sample, the data on the heavy-hole mobility in the quasi-elastic and inelastic approximations nearly coincide. When the initial distribution function is located at the sample edge, the time dependences of the carrier mobility in the quasi-elastic and inelastic approximations are markedly different. The results obtained are of importance for the interpretation of electrophysical experiments with diamond.
KeywordsCarrier Mobility Acoustic Phonon Heavy Hole Boltzmann Kinetic Equation Uniform Case
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