Transient Electronic Transport Properties through a Quantum Dots Ring

  • Authors

    • W. A. Abdul-Hussein
    https://doi.org/10.14419/ijet.v7i4.42.25533

    Received date: January 8, 2019

    Accepted date: January 8, 2019

    Published date: December 29, 2018

  • Electron Transport, Quantum Dots, Ring Structure.

  • Abstract

    In this paper a theoretical study of the effect of the electron transport in a quantum dot ring, which is consisted from four quantum dots, connected with two electrode metal. For this purpose, a single-electron model was used in this system. The Hamiltonian of this system is consisted from a single level for each quantum dots. The influence of energy levels of the electrode metal was taken into consideration. The Time-dependent equations of motion were found using the Laplace transform, which was enabled the occupation-probability to be found for the right electrode. Results shown that the occupation-probability and the current flowing exhibit oscillations in the elementary stage of the transport process and finally progress into stationary values. So, the occupation probability of the R-electrode increased with the coupling interaction of the QDs and the bias voltage, but it is reduced by increasing the electrodes-QDs interaction and absolute temperature. 

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  • How to Cite

    A. Abdul-Hussein, W. (2018). Transient Electronic Transport Properties through a Quantum Dots Ring. International Journal of Engineering and Technology, 7(4.42), 5-8. https://doi.org/10.14419/ijet.v7i4.42.25533