Effect of spatial electric field on the sub-band energy in a cubic GaAs/AlAs quantum dot

• Published in: Physica. E, Low-dimensional systems & nanostructures Vol. 39; no. 1; pp. 95 - 98
• Main Authors: Dane, C., Akbas, H., Talip, N., Kasapoğlu, K.
• Format: Journal Article
• Language: English
• Published: Amsterdam Elsevier B.V 01.07.2007; Elsevier
• Subjects: Condensed matter: electronic structure, electrical, magnetic, and optical properties; Electron states and collective excitations in thin films, multilayers, quantum wells, mesoscopic and nanoscale systems; Electronic structure and electrical properties of surfaces, interfaces, thin films and low-dimensional structures; Exact sciences and technology; Physics; Quantum dot; Quantum dots; Spatial electric field; Sub-band energy; 71.55.−i; Sub-band energy; 71.55.Eq; Quantum dot; 73.20.Dx; Spatial electric field; Aluminium arsenides; Band structure; Gallium arsenides; 71.55.-i; Variational methods; Quantum dots; Subband; Field orientation; Electric field effects; 71.55.Eq;Sub-band energy
• ISSN: 1386-9477; 1873-1759
• DOI: 10.1016/j.physe.2007.01.007

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 depending upon the orientation of the spatial electric field.