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Tuning the binding energy of on-center donor in CdSe/ZnTe core/shell quantum dot by spatial parameters and magnetic field strength
Univ Moulay Ismail, Phys Dept, Unite Associee CNRST URAC 08, Lab Phys Mat & Modelisat Syst,LP2MS,Fac Sci, BP 11201, Meknes, Morocco..
Univ Moulay Ismail, Phys Dept, Unite Associee CNRST URAC 08, Lab Phys Mat & Modelisat Syst,LP2MS,Fac Sci, BP 11201, Meknes, Morocco.;Uppsala Univ, Dept Phys & Astron, Condensed Matter Theory Grp, S-75120 Uppsala, Sweden..
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Molecular and Condensed Matter Physics.
Univ Lorraine, LCP A2MC, Inst Chim Phys & Mat, 1 Bd Arago, F-57070 Metz, France..
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2017 (English)In: Physica. E, Low-Dimensional systems and nanostructures, ISSN 1386-9477, E-ISSN 1873-1759, Vol. 94, p. 96-99Article in journal (Refereed) Published
Abstract [en]

The behavior of the electron ground state and of the ground state binding energy of an on-center donor confined in a CdSe/ZnTe core/shell spherical nanodot was examined theoretically within the framework of the effectivemass approximation and using a variational calculation. The radial dependence of the dielectric constant and of the electron effective mass as well as the effect of the polarization charge were considered. Our results highlight the large impact of the magnetic field strength and the spatial parameters on the energy behavior for both the electron and the donor. Our study points out also the fact that the magnetic confinement may be eclipsed by the spatial confinement in heteronanostructures with small size and expected to be dominant in the opposite case.

Place, publisher, year, edition, pages
2017. Vol. 94, p. 96-99
Keywords [en]
Shallow donor, Core/shell materials, Nanostructures, Quantum dots, Magnetic field
National Category
Materials Engineering
Identifiers
URN: urn:nbn:se:uu:diva-336300DOI: 10.1016/j.physe.2017.07.016ISI: 000410790900015OAI: oai:DiVA.org:uu-336300DiVA, id: diva2:1176840
Available from: 2018-01-23 Created: 2018-01-23 Last updated: 2018-01-23Bibliographically approved

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Ahuja, Rajeev

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