Research Article

Free-Electron Screening Mechanism of the Shallow Impurity Breakdown in n-GaAs: Evidences from the Photoelectric Zeeman and Cyclotron Resonance Spectroscopies

Figure 20

CR line shapes of two samples, 5 (curve 2) and 6 (curve 1), with similar values of the neutral and ionized impurity concentrations. The electric field takes prebreakdown values; and . (1) and ; (2) and .