Research Article

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

Figure 13

Shape of the cyclotron resonance lines of the sample I at , , , and at different electric fields. The measurements were done in the voltage regime far from the breakdown, and in the current regime at the breakdown.