Effect of geometry on the screened acceptor binding energy in a quantum wire

Journal Article · Thu Apr 24 00:00:00 EDT 2014 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.4872601· OSTI ID:22269460

Shanthi, R. Vijaya, E-mail: [e-mail]; Nithiananthi, P., E-mail: [e-mail] ^[1]

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1. Department of Physics, Gandhigram Rural University, Gandhigram - 624 302, Tamilnadu (India)

The effect of various Geometries G(x, y) of the GaAs/Al{sub x}Ga{sub 1−x}As Quantum wire like G{sub 1}: (L, L) {sub 2}: (L, L/2) {sub 3}: (L/2, L/4) on the binding energy of an on-center acceptor impurity has been investigated through effective mass approximation using variational technique. The observations were made including the effect of spatial dependent dielectric screening for different concentration of Al, at T=300K. The influence of spatial dielectric screening on different geometries of the wire has been compared and hence the behavior of the acceptor impurity in GaAs/Al{sub x}Ga{sub 1−x}As Quantum wire has been discussed.

• OSTI ID: 22269460
• Journal Information: AIP Conference Proceedings, Vol. 1591, Issue 1; Conference: 58. DAE solid state physics symposium 2013, Patiala, Punjab (India), 17-21 Dec 2013; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

77 NANOSCIENCE AND NANOTECHNOLOGY
ABSORPTION SPECTROSCOPY
ALUMINIUM COMPOUNDS
APPROXIMATIONS
BINDING ENERGY
COMPARATIVE EVALUATIONS
CONCENTRATION RATIO
DIELECTRIC MATERIALS
EFFECTIVE MASS
GALLIUM ARSENIDES
INTERFACES
QUANTUM WIRES
VARIATIONAL METHODS
X-RAY SPECTROSCOPY