Drift velocity-field characteristics for for different values of the elastic scattering rate and inelastic scattering rate .
(a) Temporal evolution of the current at a dc electric field and different doping concentrations , , , , and . (b) Temporal evolution of the current at and different dc electric fields , 0.7, and 0.9 V.
(a) The current oscillation frequency on different doping concentrations at and at . (b) The current oscillation frequency on different applied electric fields at , , and at .
Dependence of time-averaged current densities on dc biases from 0 to 1.0 V at and the doping concentration .
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