Spatial electric field effect in a GaAs/AlAs tetragonal quantum dot
✍ Scribed by H. Akbas; C. Dane; K. Kasapoğlu; N. Talip
- Publisher
- Elsevier Science
- Year
- 2008
- Tongue
- English
- Weight
- 227 KB
- Volume
- 40
- Category
- Article
- ISSN
- 1386-9477
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✦ Synopsis
Within the effective-mass approximation and with two-parameter variational procedure we have calculated the effect of spatial electric field and ratios of dot edge lengths(c/a) on the electron sub-band energy and the polarization of an electron in the tetragonal GaAs/AlAs quantum dot. It is found that the electric flux F leaving the tetragonal dot is reliable parameter for describing the structure.
📜 SIMILAR VOLUMES
The electron sub-band energy of a cubic GaAs/AlAs quantum dot under an applied spatial electric field is theoretically investigated within a variational scheme. In this case, we show that the electron sub-band energy E decreases with spatial electric field strength F and increases or decreases depen
We study the formation of Fano resonance in excitonic states in GaAs±AlAs quantum wells. Our calculation indicates that an electric field applied perpendicularly to the layers modulates the Fano resonance. We have found that for a given excitonic state there exists a field-range for which Fano reson