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2009 | 115 | 3 | 721-731
Article title

Many-Body Effects and Bandgap Renormalization in H-Shaped Quantum Wires

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EN
Abstracts
EN
In this paper, bound states energies and corresponding wave functions of H-shaped quantum wires are calculated numerically in the presence of the external magnetic and electric fields. This analysis was done within the Landau gauge. With a suitable definition of the external confinement potential, we present a numerical algorithm to calculate the profile of the probability distribution of charge carriers. Our analysis shows that in the presence of the external electric and magnetic fields, bound state properties of the carriers are sensitive functions of an asymmetric parameter a= W_{x}/W_{y} which measures the relative width of the quantum well in two directions. We also study many-body effect of the bandgap renormalization in this quasi-one-dimensional system within the dynamical random phase approximation in its leading order.
Keywords
EN
Publisher

Year
Volume
115
Issue
3
Pages
721-731
Physical description
Dates
published
2009-03
received
2008-09-16
(unknown)
2008-12-17
Contributors
author
  • Department of Physics, Faculty of Basic Sciences, University of Mazandaran, P.O. Box 47416-1467, Babolsar, Iran
  • Nano and Biotechnology Research Group, Faculty of Basic Sciences, University of Mazandaran, P.O. Box 47416-1467, Babolsar, Iran
author
  • Department of Physics, Faculty of Basic Sciences, University of Mazandaran, P.O. Box 47416-1467, Babolsar, Iran
author
  • Department of Physics, Payam-e Nour University, P.O. Box 919, Mashad, Iran
author
  • Department of Physics, Iran University of Science and Technology, Tehran, Iran
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Document Type
Publication order reference
Identifiers
YADDA identifier
bwmeta1.element.bwnjournal-article-appv115n323kz
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