Transport Equations for Electrons in Two-Valley Semiconductors.
NORGES TEKNISKE HOEGSKOLE TRONDHEIM DIV OF PHYSICAL ELECTRONICS
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Transport equations are derived for particles, momentum and energy of electrons in a semiconductor with two distinct valleys in the conduction band, such as GaAs. Care is taken to state and discuss the assumptions which are made in the derivation. The collision processes are expressed in terms of relaxation times. The accuracy is improved by considering these to depend on the average kinetic energy rather than the electron temperature. Other transport equations used in the literature are discussed, and shown to be incomplete and inaccurate in many cases. Author
- Solid State Physics