The Origin of Two-dimensional Electron Gas in Zn${}_{1-x}$Mg${}_x$O/ZnO Heterostructures

Xiang-Hong Chen, Dong-Yu Hou, Zhi-Xin Hu +2

Although the two-dimensional electron gas (2DEG) in (001) Zn${}_{1-x}$Mg${}_x$O/ZnO heterostructures has been discovered for about twenty years, the origin of the 2DEG is still inconcl…