Physical Review B, volume 45, issue 11, pages 5969-5979
Electron states in a quantum dot in an effective-bond-orbital model
1
Laser Programme, Centre for Advanced Technology, Indore 452 013, India
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Publication type: Journal Article
Publication date: 1992-03-15
Journal:
Physical Review B
Quartile SCImago
Q1
Quartile WOS
Q2
Impact factor: 3.7
ISSN: 24699950, 24699969, 10980121, 1550235X
Abstract
The electronic-level structure in semiconductor quantum dots is investigated in a tight-binding framework. The energy levels and wave functions of GaAs and CdS crystallites containing up to \ensuremath{\sim}4000 atoms are calculated using an effective-bond-orbital model. The results obtained for GaAs crystallites by using parameters that accurately reproduce the band structure near the \ensuremath{\Gamma} point are compared with those obtained by calculations based on a multiband effective-mass theory. The effective-mass approximation (EMA) is found to correctly describe the qualitative features of the level structure, such as the bunching of levels and the spatial dependence of the wave functions. However, for very small particles the EMA grossly overestimates the confinement energies mainly because of the deviation of the bulk band structure from parabolic dispersion at high energies. For CdS crystallites we use a parametrization scheme that reproduces the main features of the bulk band structure throughout the Brillouin zone, and compare the results with those obtained by the multiband EMA, as well as with experimental data on interband transitions.
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1 publication, 1.85%
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2
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Citations by publishers
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2
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12
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Elsevier
11 publications, 20.37%
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American Institute of Physics (AIP)
11 publications, 20.37%
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American Physical Society (APS)
11 publications, 20.37%
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Springer Nature
6 publications, 11.11%
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IOP Publishing
4 publications, 7.41%
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American Chemical Society (ACS)
3 publications, 5.56%
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Societa Italiana di Fisica
1 publication, 1.85%
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Royal Society of Chemistry (RSC)
1 publication, 1.85%
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Wiley
1 publication, 1.85%
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Taylor & Francis
1 publication, 1.85%
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Autonomous Non-profit Organization Editorial Board of the journal Uspekhi Khimii
1 publication, 1.85%
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2
4
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10
12
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- We do not take into account publications without a DOI.
- Statistics recalculated only for publications connected to researchers, organizations and labs registered on the platform.
- Statistics recalculated weekly.
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Nair S. V. et al. Electron states in a quantum dot in an effective-bond-orbital model // Physical Review B. 1992. Vol. 45. No. 11. pp. 5969-5979.
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Nair S. V., Nair S., Ramaniah L. M., Rustagi K. C. Electron states in a quantum dot in an effective-bond-orbital model // Physical Review B. 1992. Vol. 45. No. 11. pp. 5969-5979.
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TY - JOUR
DO - 10.1103/physrevb.45.5969
UR - https://doi.org/10.1103/physrevb.45.5969
TI - Electron states in a quantum dot in an effective-bond-orbital model
T2 - Physical Review B
AU - Nair, Selvakumar V.
AU - Ramaniah, Lavanya M.
AU - Rustagi, Kailash C.
AU - Nair, Selvakumar
PY - 1992
DA - 1992/03/15 00:00:00
PB - American Physical Society (APS)
SP - 5969-5979
IS - 11
VL - 45
SN - 2469-9950
SN - 2469-9969
SN - 1098-0121
SN - 1550-235X
ER -
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@article{1992_Nair,
author = {Selvakumar V. Nair and Lavanya M. Ramaniah and Kailash C. Rustagi and Selvakumar Nair},
title = {Electron states in a quantum dot in an effective-bond-orbital model},
journal = {Physical Review B},
year = {1992},
volume = {45},
publisher = {American Physical Society (APS)},
month = {mar},
url = {https://doi.org/10.1103/physrevb.45.5969},
number = {11},
pages = {5969--5979},
doi = {10.1103/physrevb.45.5969}
}
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Nair, Selvakumar V., et al. “Electron states in a quantum dot in an effective-bond-orbital model.” Physical Review B, vol. 45, no. 11, Mar. 1992, pp. 5969-5979. https://doi.org/10.1103/physrevb.45.5969.