First-principles study of electron transport through atomistic metal-oxide-semiconductor structures

Xiaodong Zhang, Leonardo Fonseca, Alexander A. Demkov

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

We describe a theoretical scheme to combine first-principles molecular dynamics simulation and non-perturbative scattering theory for transport calculations. We compare our approach with published results for electron transport through a single Al atom. The method is then applied to the Si/SiO 2/Si MOS structure, where we analyze the correspondence between the localized defect states and the leakage current. For a 1.04 nm thick MOS structure we calculate a leakage current of 33 A/cm 2, in excellent agreement with a measured value of 19 A/cm 2.

Original languageEnglish (US)
Title of host publication2002 International Conference on Computational Nanoscience and Nanotechnology - ICCN 2002
EditorsM. Laudon, B. Romanowicz
Pages322-325
Number of pages4
StatePublished - 2002
Externally publishedYes
Event2002 International Conference on Computational Nanoscience and Nanotechnology - ICCN 2002 - San Juan, Puerto Rico
Duration: Apr 21 2002Apr 25 2002

Publication series

Name2002 International Conference on Computational Nanoscience and Nanotechnology - ICCN 2002

Other

Other2002 International Conference on Computational Nanoscience and Nanotechnology - ICCN 2002
Country/TerritoryPuerto Rico
CitySan Juan
Period4/21/024/25/02

Keywords

  • Aluminum
  • CMOS leakage
  • Density functional
  • Device physics
  • Electron transport
  • Scattering theory

ASJC Scopus subject areas

  • General Engineering

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