کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8163306 | 1525219 | 2013 | 15 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Magnetic field-dependent of binding energy in GaN/InGaN/GaN spherical QDQW nanoparticles
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موضوعات مرتبط
مهندسی و علوم پایه
فیزیک و نجوم
فیزیک ماده چگال
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
Simultaneous study of magnetic field and impurity's position effects on the ground-state shallow-donor binding energy in GaNâInGaNâGaN (coreâwellâshell) spherical quantum dot-quantum well (SQDQW) as a function of the ratio of the inner and the outer radius is reported. The calculations are investigated within the framework of the effective-mass approximation and an infinite deep potential describing the quantum confinement effect. A Ritz variational approach is used taking into account of the electron-impurity correlation and the magnetic field effect in the trial wave-function. It appears that the binding energy depends strongly on the external magnetic field, the impurity's position and the structure radius. It has been found that: (i) the magnetic field effect is more marked in large layer than in thin layer and (ii) it is more pronounced in the spherical layer center than in its extremities.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Physica B: Condensed Matter - Volume 427, 15 October 2013, Pages 106-109
Journal: Physica B: Condensed Matter - Volume 427, 15 October 2013, Pages 106-109
نویسندگان
Haddou El Ghazi, Anouar Jorio, Izeddine Zorkani,