Near ballistic transport in a nonparabolic-band structure for n- and p-GaAs

The effects of intervalley scattering and conduction-band nonparabolicity are incorporated into calculations of the one-dimensional Poisson´s equation. The I-V chaxactetistic is obtained for n⁺-n^--n⁺and n⁺-p^--n⁺structures, respectively, by assuming ohmic contacts without spillover effects. The dominant effect for the current deviation from pure ballistic behavior is intervalley transfer.