Neophytos Neophytou

A 2D ballistic model for the investigation of atomistic bandstructure effects.

A 2D Ballistic Atomistic Model for the Investigation of Bandstructure Effects Neophytos Neophytou, Abhijeet Paul, Mark Lundstrom, Gerhard Klimeck

Objective:

  • Understand the effects of bandstructure in nanoscale nanowire devices
  • Understand the effect of charge self-consistency on the dispersions

Approach:

  • Use the sp3d5s*-SO atomistic TB model for the electronic structure
  • Use the semi-classical ballistic top-of-the-barrier model
  • Solve the 2D poisson in the cross section of the wire
  • Self-consistently iterate with the bandstructure calculation model

Impact

  • Transport features in nanowires in different orientations can be explained
  • Prediction for performance optimization

Publication

  • Tool at nanoHUB.org Band Structure lab
  • IEEE NANO [J_2008_19].
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Neophytos Neophytou's Pages

Biography A 3D atomistic quantum simulator for realistic CNT structures. The work is published in A 2D ballistic model for the investigation of atomistic bandstructure effects. Bandstructure effects in Si nanowire electron transport. Bandstructure effects in Si nanowire hole transport. Design for variability tolerance: On current variation in [110] PMOS nanowires. Quantum transport in III-V HEMTs for high performance logic applications