D2+ Molecular Complex in Ring-Like Nanostructures: Hydrostatic Pressure and Electromagnetic Field Effects |
| M.R. Fullaa,b, J.H. Marínb, W. Gutiérrezc, C.A. Duqued and M.E. Mora-Ramosd,e,f
aInstitución Universitaria Pascual Bravo, AA 6564 Medellín, Colombia bEscuela de Física, Universidad Nacional de Colombia, AA 3840, Medellín, Colombia cEscuela de Física, Universidad Industrial de Santander, AA 678, Bucaramanga, Colombia dGrupo de Materia Condensada-UdeA, Instituto de Física, Facultad de Ciencias Exactas y Naturales, Universidad de Antioquia UdeA, Calle 70 No. 52-21, Medellín, Colombia eFacultad de Ciencias, Universidad Autónoma del Estado de Morelos, CP 62209, México fFísica Teórica y Aplicada, Escuela de Ingeniería de Antioquia, AA 7516, Medellín, Colombia |
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| In this work we investigate the energy states in a D2+ complex formed by the coupling of a conduction band electron and two donor centers in a quantum ring with rectangular cross-section. The influences of externally applied probes like electric and magnetic fields and hydrostatic pressure together with the change in the relative position between the two Coulombic centers are particularly studied, highlighting the important contribution of the repulsive inter-center interaction. The destruction of the Aharonov-Bohm oscillations of the ground state associated with the localization of the electron states in the system is discussed. |
DOI: 10.12693/APhysPolA.125.241 PACS numbers: 71.55.Eq, 73.20.Hb, 73.21.La |