Article ID Journal Published Year Pages File Type
1553938 Superlattices and Microstructures 2012 5 Pages PDF
Abstract

In the present work we report the effects of a geometrical confinement and tilted applied electric field on the electronic energy levels in a semiconducting quantum disk. Calculations are performed in the effective mass approximation and using a variational method. The results can be summarized as follows: (1) due to the infinite confinement along the all directions of the heterostructure, the variational calculation with two parameters for tilted applied electric field can be treated with two independent each other variational parameters; (2) the magnitude of the energy shift is an increasing function of the applied electric field; (3) the effects of the applied electric field are magnified as the dimensions of the heterostructure (height and radius) grow; and finally (4) for large enough applied electric field the energy shift is a linear function of the applied electric field.

► Geometric effects on the electronic energy levels in quantum disk. ► Electric field effects on the electronic energy levels in quantum disk. ► Two variational parameters wave function for tilted applied electric field. ► Energy shift is an increasing function of the applied electric field. ► Effects of the applied electric field are magnified with dimensions.

Related Topics
Physical Sciences and Engineering Materials Science Electronic, Optical and Magnetic Materials
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