Self-consistent calculation of semiconductor heterojunctions using quantum genetic algorithm

Download

index.pdf

Date

2002-10-20

Author

Sahin, M
Tomak, Mehmet

Metadata

Show full item record

This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Item Usage Stats

138
views

61
downloads

In this study, we have investigated the ground state energy level of electrons in modulation doped GaAs/AlxGa1-xAs heterojunctions. For this purpose, Schrodinger and Poisson equations are solved self consistently using quantum genetic algorithm (QGA). In this way, we have found the potential profile, the ground state subband energy and their corresponding envelope functions, Fermi level, and the amount of tunneling charge from barrier to channel region. Their dependence on various device parameters are also examined.

Subject Keywords

Self-consistent, Genetic algorithm, 2DEG, Heterostructures

URI

https://hdl.handle.net/11511/46665

Journal

INTERNATIONAL JOURNAL OF MODERN PHYSICS B

DOI

https://doi.org/10.1142/s0217979202014759

Collections

Department of Physics, Article

Suggestions

OpenMETU
Core

Resonctructing signaling pathways from RNAi data using genetic algorithms Ayaz, Eyüp Serdar; Can, Tolga; Department of Bioinformatics (2011) Cell signaling is a list of chemical reactions that are used for intercellular and intracellular communication. Signaling pathways denote these chemical reactions in a systematic manner. Today, many signaling pathways are constructed by several experimental methods. However there are still many communication skills of cells that are needed to be discovered. RNAi system allows us to see the phenotypes when some genes are removed from living cells. By observing these phenotypes, we can build signaling pathway...
DEPENDENCE OF RESONANCE STATES ON DOPING LEVEL AND DOPING DISTRIBUTION TYPE IN GAAS GA0.75AL0.25AS SUPERLATTICE Katırcıoğlu, Şenay (1994-05-10) The electronic structure of a uniformly and modulation-doped GaAs/Ga0.75Al0.25As superlattice has been investigated by a self-consistent field calculation within the effective mass approximation for three different doping concentrations. It has been found that the resonance state energies show a strong dependence on the doping level and the doping distribution type of the superlattice.
Short-range correlations in a one-dimensional electron gas Tas, M; Tomak, Mehmet (American Physical Society (APS), 2003-06-15) We use the Singwi-Sjolander-Tosi-Land (SSTL) approximation to investigate the short-range correlations in a one-dimensional electron gas. We find out that the SSTL approximation satisfies the compressibility sum rule somewhat better than the more widely used Singwi-Tosi-Land-Sjolander approximation in the case of a one-dimensional electron gas.
Temperature dependence of the Raman frequencies and bandwidths close to phase transitions in ammonium halides Yurtseven, Hasan Hamit (2001-09-01) In this study, we give the temperature dependence of our observed frequencies and bandwidths for the Raman optical modes in the ammonium halides close to the phase transitions of the first order (NH4 Br), tricritical (NH4Cl) and second order (NH4Cl). Using the predictions of an [sing pseudospin-phonon coupled model, which considers interactions between two spin and two phonons, our observed Raman data have been interpreted qualitatively. Our results show that an Ising model considered here can explain the o...
Relativistic and nonrelativistic bound states of the isotonic oscillator by Nikiforov-Uvarov method IKHDAİR, SAMEER; Sever, Ramazan (2011-12-01) A nonpolynomial one-dimensional quantum potential in the form of an isotonic oscillator (harmonic oscillator with a centripetal barrier) is studied. We provide the nonrelativistic bound state energy spectrum E(n) and the wave functions psi(n)(chi) in terms of the associated Laguerre polynomials in the framework of the Nikiforov-Uvarov method. Under the spin and pseudospin symmetric limits, the analytic eigenvalues and the corresponding two-component upper-and lower-spinors of the Dirac particle are obtained...

Citation Formats

M. Sahin and M. Tomak, “Self-consistent calculation of semiconductor heterojunctions using quantum genetic algorithm,” INTERNATIONAL JOURNAL OF MODERN PHYSICS B, pp. 3883–3893, 2002, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/46665.