کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1865075 | 1530635 | 2007 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Effect of interaction between periodic δ-doping in both well and barrier layers on modulation of superlattice band structure
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
فیزیک و نجوم
فیزیک و نجوم (عمومی)
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
The modulation of superlattice band structure via periodic δ-doping in both well and barrier layers have been theoretically investigated, and the importance of interaction between the δ-function potentials in the well layers and those in the barrier layers on SL band structure have been revealed. It is pointed out that the energy dispersion relation Eq. (3) given in [G. Ihm, S.K. Noh, J.I. Lee, J.-S. Hwang, T.W. Kim, Phys. Rev. B 44 (1991) 6266] is an incomplete one, as the interaction between periodic δ-doping in both well and barrier layers had been overlooked. Finally, we have shown numerically that the electron states of a GaAs/Ga0.7Al0.3As superlattice can be altered more efficiently by intelligent tuning the two δ-doping's positions and heights.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Physics Letters A - Volume 368, Issues 3â4, 20 August 2007, Pages 324-330
Journal: Physics Letters A - Volume 368, Issues 3â4, 20 August 2007, Pages 324-330
نویسندگان
Huaizhe Xu, Qiqi Yan, Tianmin Wang,