Double-donor complex in vertically coupled quantum dots in a threading magnetic field

被引：5
|
作者：
Manjarres-Garcia, Ramon [1 ]
Elizabeth Escorcia-Salas, Gene [1 ]
Manjarres-Torres, Javier [1 ]
Mikhailov, Ilia D. [2 ]
Sierra-Ortega, Jose [1 ]
机构：
[1] Univ Magdalena, Grp Invest Condensed Matter Theory, Santa Marta, Colombia
[2] Univ Ind Santander, Bucaramanga, Colombia
来源：
NANOSCALE RESEARCH LETTERS | 2012年 / 7卷
关键词：
Quantum dots; Adiabatic approximation; Artificial molecule;
D O I：
10.1186/1556-276X-7-531
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
We consider a model of hydrogen-like artificial molecule formed by two vertically coupled quantum dots in the shape of axially symmetrical thin layers with on-axis single donor impurity in each of them and with the magnetic field directed along the symmetry axis. We present numerical results for energies of some low-lying levels as functions of the magnetic field applied along the symmetry axis for different quantum dot heights, radii, and separations between them. The evolution of the Aharonov-Bohm oscillations of the energy levels with the increase of the separation between dots is analyzed.
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收藏
页数：5
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