Skip to main content
Article
Smooth Quantum Hydrodynamic model vs. NEMO Simulation of Resonant Tunneling Diodes
Other Nanotechnology Publications
  • Carl L. Gardner, Arizona State University
  • Gerhard Klimeck, Purdue University - Main Campus
  • Christian Ringhofer, Arizona State University
Abstract
The smooth quantum hydrodynamic model is an extension of the classical hydrodynamic model for semiconductor devices which can handle in a mathematically rigorous way the discontinuities in the classical potential energy which occur at heterojunction barriers in quantum semiconductor devices. Smooth QHD model simulations of the current-voltage curves of resonant tunneling diodes are presented which exhibit negative differential resistance—the experimental signal for quantum resonance effects—and are compared with the experimentally verified current-voltage curves predicted by the simulator NEMO, which uses a non-equilibrium Green function method.
Keywords
  • resonant tunneling diode,
  • quantum hydrodynamic model,
  • NEMO
Date of this Version
3-1-2004
Citation Information
Carl L. Gardner, Gerhard Klimeck and Christian Ringhofer. "Smooth Quantum Hydrodynamic model vs. NEMO Simulation of Resonant Tunneling Diodes" (2004)
Available at: http://works.bepress.com/gerhard_klimeck/133/