D_2^+ Molecular Complex in Ring-Like Nanostructures: Hydrostatic Pressure and Electromagnetic Field Effects

• Authors: M. Fulla , J. Marín , W. Gutiérrez , C. Duque , M. Mora-Ramos
• Languages of publication: EN

Abstracts

EN

In this work we investigate the energy states in a D_2^+ 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.

Keywords

EN

71.55.Eq; 73.20.Hb; 73.21.La

Discipline

• 73.20.Hb: Impurity and defect levels; energy states of adsorbed species
• 71.55.Eq: III-V semiconductors
• 73.21.La: Quantum dots

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 2014
• Volume: 125
• Issue: 2
• Pages: 241-244

Dates

published

2014-02

Contributors

author

M. Fulla

• Institución Universitaria Pascual Bravo, AA 6564 Medellín, Colombia
• Escuela de Física, Universidad Nacional de Colombia, AA 3840, Medellín, Colombia

author

J. Marín

• Escuela de Física, Universidad Nacional de Colombia, AA 3840, Medellín, Colombia

author

W. Gutiérrez

• Escuela de Física, Universidad Industrial de Santander, AA 678, Bucaramanga, Colombia

author

C. Duque

• Grupo de Materia Condensada-UdeA, Instituto de Física, Facultad de Ciencias Exactas y Naturales, Universidad de Antioquia UdeA, Calle 70 No. 52-21, Medellín, Colombia

author

M. Mora-Ramos

• Grupo de Materia Condensada-UdeA, Instituto de Física, Facultad de Ciencias Exactas y Naturales, Universidad de Antioquia UdeA, Calle 70 No. 52-21, Medellín, Colombia
• Facultad de Ciencias, Universidad Autónoma del Estado de Morelos, CP 62209, México
• Física Teórica y Aplicada, Escuela de Ingeniería de Antioquia, AA 7516, Medellín, Colombia

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Identifiers

DOI

10.12693/APhysPolA.125.241