Hi, I want to understand how to include all the physicsl models of spontaneous and piezoelectric polarization to create 2-Dimensional Electron Gas (2DEG) at the interface of an AlGaN/GaN or AlGaAs/GaAs HEMT. I want the simulator to simulate varying levels of polarization generated at the heterostructure interface due to different thicknesses of the barrier (e.g. AlGaN) layer. I am trying to simulate an AlGaN/GaN HEMT for THz applications, and your help would be highly appreciated.
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