An improved TB method for the AlGaN/GaN superlattice

摘要：

　　The tradition energy dispersion model can not match the experiment results of the AlGaN/GaN superlattice with strong polarization effect.Thus we propose a new dispersion model from the improved tight binding method.In this model,the couple of wavefunctions from more potential wells are considered.To a AlGaN/GaN superlattice with 1.5nm well length,1 nm barrier length and 25% Al content,the calculation result shows that the improved model are much more precise than the tradition model.This improved dispersion model can be used in the study of the nonlinear transport of AlGaN/GaN superlattice.

关键词： terahertz superlattice GaN

作者: Junfeng Chen Xiangzhen Yu

作者单位: The Department of Communication Engineering, Engineering college of Chinese Peoples Armed Police Force, 710086, Xian, ShaanXi, China

会议类型: 国际会议

会议名称: 2012 2nd International Symposium on Chemical Engineering and Material Properties(ISCEMP2012)(2012第二届化学工程与材料特性国际研讨会)

会议地点: 太原

会议语种:英文

页码: 41-44

在线出版日期: 2012-06-23（万方平台首次上网日期，不代表论文的发表时间）