3D Monte-Carlo device simulations using an effective quantum potential including electron-electron interactions

Clemens Heitzinger, Christian Ringhofer, Shaikh Ahmed, Dragica Vasileska

Research output: Contribution to journalArticle

6 Scopus citations

Abstract

Effective quantum potentials describe the physics of quantum-mechanical electron transport in semiconductors more than the classical Coulomb potential. An effective quantum potential was derived previously for the interaction of an electron with a barrier for use in particle-based Monte Carlo semiconductor device simulators. The method is based on a perturbation theory around thermodynamic equilibrium and leads to an effective potential scheme in which the size of the electron depends upon its energy and which is parameter-free. Here we extend the method to electron-electron interactions and show how the effective quantum potential can be evaluated efficiently in the context of many-body problems. The effective quantum potential was used in a three-dimensional Monte-Carlo device simulator for calculating the electron-electron and electron-barrier interactions. Simulation results for an SOI transistor are presented and illustrate how the effective quantum potential changes the characteristics compared to the classical potential.

Original languageEnglish (US)
Pages (from-to)15-18
Number of pages4
JournalJournal of Computational Electronics
Volume6
Issue number1-3
DOIs
Publication statusPublished - Sep 2007

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Keywords

  • Effective quantum potential
  • Electron-electron interactions
  • Monte-Carlo simulation

ASJC Scopus subject areas

  • Computational Theory and Mathematics
  • Electrical and Electronic Engineering

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