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

Figure 9

Dependence of on the electric field U at the top of line at is shown for (1) by -points; for (2) by -points when and for (3) by -points; for (4) by -points when in the same sample.