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

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 ene...

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Detalles Bibliográficos
Autores principales: Manjarres-García, Ramón, Escorcia-Salas, Gene Elizabeth, Manjarres-Torres, Javier, Mikhailov, Ilia D, Sierra-Ortega, José
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Springer 2012
Materias:
Nano Express
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3477088/
https://www.ncbi.nlm.nih.gov/pubmed/23013550
http://dx.doi.org/10.1186/1556-276X-7-531
Descripción
Sumario: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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