abstract

• Dipolar transformations of two-dimensional arrays of quantum dots are investigated theoretically. Homogeneous and non-homogeneous two-dimensional distributions are modeled by considering sections of the quantum dot array with different confinement potential. The dipolar transformations are tested by means of simulation of the dispersion of electrons of a beam traveling parallel to the plane of the quantum dot array. We calculate the electron energy loss function as a function of the temperature for different non-homogeneous distributions, considering several confinement potentials and coupling potentials among the quantum dots. Our results indicate that it would be possible by electron energy loss spectroscopy experiments to detect these dipolar transformations. © 2012 American Institute of Physics.

authors

• Camacho A.
• Carrillo J.
• Moctezuma Martiñón Rosario Esperanza
• Nossa J.F.
• Rubí J.M.

publication date

• 2012-01-01

funding provided via

• Benemérita Universidad Autónoma de Puebla, BUAP: 05/EXC/06-I  Grant
• Consejo Nacional de Ciencia y Tecnología, CONACYT: 44296  Grant
• Departamento Administrativo de Ciencia, Tecnología e Innovación (COLCIENCIAS): 1204-05-46852  Grant
• Dirección General de Universidades e Investigación: SAB2005-0063  Grant
• Universitat de Barcelona, UB  Grant

published in

• Journal of Applied Physics  Journal

keywords

• Confinement potential; Electron energy loss; Non-homogeneous; Non-homogeneous distribution; Quantum dot arrays; Two dimensional distribution; Two-dimensional arrays; Two-dimensional quantum dots; Electron energy loss spectroscopy; Electron scattering; Energy dissipation; Two dimensional; Semiconductor quantum dots

Digital Object Identifier (DOI)

• 10.1063/1.4737791

start page

end page

volume

• 112

issue

• 2