ELECTRONIC STRUCTURE AND BAND BENDING OF MODULATION-DOPEDGaAs/AlxGa1-xAsSYMMETRIC AND ASYMMETRIC DOUBLE QUANTUM WELLS UNDER AN APPLIED ELECTRIC FIELD

F. Ungan, E. Kasapoglu (), H. Sari and I. Sökmen
Additional contact information
F. Ungan: Cumhuriyet University, Physics Department, 58140 Sivas, Turkey
E. Kasapoglu: Cumhuriyet University, Physics Department, 58140 Sivas, Turkey
H. Sari: Cumhuriyet University, Physics Department, 58140 Sivas, Turkey
I. Sökmen: Dokuz Eylül University, Physics Department, 35160 Izmir, Turkey

Surface Review and Letters (SRL), 2009, vol. 16, issue 01, 105-110

Abstract: In this study, we have calculated theoretically the effects of the electric field and doping concentration on the sub-band energies, the electron population, and total charge density in modulation-doped symmetric and asymmetricGaAs/Al0.33Ga0.67Asdouble quantum wells. Electronic properties of the system are determined by the solving the Schrödinger and Poisson equations self-consistently in the effective-mass approximation. The application of an electric field in the growth direction of the system causes a polarization of the carrier distribution and shifts the sub-band energies, which may be used to control and modulate intensity output devices. In an asymmetric double-quantum-well structure, the effects mentioned above appear more clearly.

Keywords: Low-dimensional systems; double quantum well (search for similar items in EconPapers)
Date: 2009
References: View complete reference list from CitEc
Citations:

Downloads: (external link)
http://www.worldscientific.com/doi/abs/10.1142/S0218625X09012366
Access to full text is restricted to subscribers

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:wsi:srlxxx:v:16:y:2009:i:01:n:s0218625x09012366

Ordering information: This journal article can be ordered from

DOI: 10.1142/S0218625X09012366

Access Statistics for this article

Surface Review and Letters (SRL) is currently edited by S Y Tong

More articles in Surface Review and Letters (SRL) from World Scientific Publishing Co. Pte. Ltd.
Bibliographic data for series maintained by Tai Tone Lim ().