Dislocation core effect scattering in a quasitriangle potential well

Xiaoqing Xu; Xianglin Liu; Shaoyan Yang; Jianming Liu; Hongyuan Wei; Qinsheng Zhu; Zhanguo Wang
March 2009
Applied Physics Letters;3/16/2009, Vol. 94 Issue 11, p112102
Academic Journal
A theory of scattering by charged dislocation lines in a quasitriangle potential well of AlxGa1-xN/GaN heterostructures is developed. The dependence of mobility on carrier sheet density and dislocation density is obtained. The results are compared with those obtained from a perfect two-dimensional electron gas and the reason for discrepancy is given.


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