کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1553693 | 1513230 | 2014 | 14 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Effect of external magnetic field on the ground state properties of Dâ centres in a Gaussian quantum dot
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
مواد الکترونیکی، نوری و مغناطیسی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
The binding energies of a negatively charged hydrogenic donor ion (Dâ) trapped in a three-dimensional quantum dot with Gaussian confinement in the presence of an external magnetic field are obtained as a function of the quantum dot size and the confinement strength and also as a function of the magnetic field by a variational method with a simple wave function. A Jastrow-like factor is used to take care of the correlation effect. The results are obtained. The magnetic moment and susceptibility are also obtained for the donor complex. One of the most important objectives of this work is to study the effect of the magnetic field on the resultant dipole moment of a Dâ complex in a Gaussian QD. It is shown that the resultant dipole moment of a Dâ complex increases as the dot size increases and decreases as the magnetic field increases. The effect of the confinement strength on the resultant dipole moment is also investigated for different values of the magnetic field.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Superlattices and Microstructures - Volume 71, July 2014, Pages 261-274
Journal: Superlattices and Microstructures - Volume 71, July 2014, Pages 261-274
نویسندگان
Aalu Boda, Madhusudhan Gorre, Ashok Chatterjee,