The Observation of Local Electric Fields in GaN/AlGaN/InGaN Multi-heterostructures by Differential Phase Contrast STEM
View PublicationAbstract
The local electric field distributions inside specimens can be directly observed by differential-phase-contrast scanning transmission electron microscopy (DPC STEM). In this study, we applied DPC STEM to GaN/AlGaN/InGaN multi-heterostructures. We successfully visualized the differences in electrostatic potentials of GaN/AlGaN/InGaN.