Quantum simulation of resonant tunneling diodes: A reliable approach based on the wiener function method

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    Abstract

    In this work, we demonstrate that the limitations of previous simulation tools for resonant tunneling diodes based on the Wigner function approach, can be overcome by coupling a classical Monte Carlo solver to the quantum Liouville equation, the former being applied to regions far enough from the double barrier, where quantum effects are not present. This allows us to extend the simulation domains up to hundreds of nanometers, without paying a penalty in computational burden. It is shown that this large domains are necessary to obtain an accurate description of device behavior. By using physical parameters corresponding to those of actual devices, we have found current oscillations and a plateaulike behavior in the negative conductance region in accordance to experimental I-V characteristics obtained on resonant tunneling diodes. © 1999 Publication Board, Japanese Journal of Applied Physics.
    Original languageEnglish
    Pages (from-to)2669-2674
    JournalJapanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers
    Volume38
    Issue number4 B
    Publication statusPublished - 1 Dec 1999

    Keywords

    • III-IV devices
    • Quantum devices
    • Quantum Monte Carlo
    • RTDs
    • Wigner

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