کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1546910 | 997625 | 2008 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Bound polaron in a spherical quantum dot under an electric field
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
مواد الکترونیکی، نوری و مغناطیسی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Bound polaron in a spherical quantum dot under an electric field Bound polaron in a spherical quantum dot under an electric field](/preview/png/1546910.png)
چکیده انگلیسی
A variational approach is used to study the ground state of a bound polaron in a spherical quantum dot under an external electric field. The binding energy of the hydrogenic impurity state is calculated by taking the interaction of an electron with both the confined longitudinal optical phonons and the surface optical phonons into account. The interaction between impurity and longitudinal optical phonons has also been considered to obtain the binding energy of a bound polaron. It shows that the polaron effects give significant corrections to the binding energy and its Stark energy shift. The external electric field increases the phonon contributions to the binding energy.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Physica E: Low-dimensional Systems and Nanostructures - Volume 40, Issue 9, August 2008, Pages 2982–2987
Journal: Physica E: Low-dimensional Systems and Nanostructures - Volume 40, Issue 9, August 2008, Pages 2982–2987
نویسندگان
Y.F. Huangfu, Z.W. Yan,