Scattering Due To Large Cluster Embedded In Quantum Wells

Two dimensional electron gas mobility limited by the scattering of large cluster is studied. From this study, we find that the scattering caused by conduction band offset between host well and multiple mini-quantum well (mini-QW) series aligned along the QW channel, i.e., quantum pits, can be treated as a variable in our calculation. The results show that the mobility increases with increasing barrier height, which is opposite to the well-known interface roughness scattering mobility. To make the calculation simple, the InxGa1-xN/InyGa1-yN QW double-heterostructure is selected to along (11 (2) over bar0) non-polarized direction, along which the barrier and well are both flat. (C) 2013 American Institute of Physics. [http://dx.doi.org/10.1063/1.4782218]