Numerical Analysis of Tunneling Between Stacked Quantum Wires with the Inclusion of the Effects from Effective Mass Discontinuities

L. Bonci, M. Macucci, D. Guan, Umberto Ravaioli

Research output: Contribution to journalArticlepeer-review

Abstract

A technique for the exact solution of the 3D Schrödinger equation in a structure with the effective mass varying in the direction transverse with respect to that of electron propagation is presented. Such a technique is applied to the study of the tunneling conductance between two stacked quantum wires as a function of the voltage applied to a top gate, whose action on the confinement potential is evaluated by means of a 3D Poisson solver. Results are then compared with those for an approximate model that allows separating the variables of the Schrödinger equation and with those for a simplified treatment of the gate action.

Original languageEnglish (US)
Pages (from-to)127-130
Number of pages4
JournalJournal of Computational Electronics
Volume2
Issue number2-4
DOIs
StatePublished - Dec 1 2003

Keywords

  • effective mass discontinuity
  • stacked wires
  • transport calculations
  • tunneling

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Modeling and Simulation
  • Electrical and Electronic Engineering

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