In this paper, the stability of self-consistent Monte Carlo (MC) device simulations is revised by developing a model that extends the existing ones by accounting for the effect of a carrier diffusion. Both the linear and the nonlinear Poisson schemes have been considered. The analysis of the linear Poisson scheme reveals that, consistently with the availablemodel, the time step between two Poisson solutions must be short compared to a factor proportional to the scattering rate. On the other hand, it has been found that, contrary to the available stability models, the nonlinear Poisson scheme requires long time steps in order to provide stable simulations. For this reason, the nonlinear scheme is advantageous when considering steady-state simulations. The model predictions have been verified by comparison with MC simulations implementing both schemes.

Revised Stability Analysis of the Nonlinear Poisson Scheme in Self-Consistent Monte Carlo Device Simulations

PALESTRI, Pierpaolo;ESSENI, David;
2006-01-01

Abstract

In this paper, the stability of self-consistent Monte Carlo (MC) device simulations is revised by developing a model that extends the existing ones by accounting for the effect of a carrier diffusion. Both the linear and the nonlinear Poisson schemes have been considered. The analysis of the linear Poisson scheme reveals that, consistently with the availablemodel, the time step between two Poisson solutions must be short compared to a factor proportional to the scattering rate. On the other hand, it has been found that, contrary to the available stability models, the nonlinear Poisson scheme requires long time steps in order to provide stable simulations. For this reason, the nonlinear scheme is advantageous when considering steady-state simulations. The model predictions have been verified by comparison with MC simulations implementing both schemes.
File in questo prodotto:
File Dimensione Formato  
2006_06_IEEE_Palestri_RevisedStabilityAnalysis.pdf

non disponibili

Tipologia: Documento in Post-print
Licenza: Non pubblico
Dimensione 245.37 kB
Formato Adobe PDF
245.37 kB Adobe PDF   Visualizza/Apri   Richiedi una copia

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11390/878354
 Attenzione

Attenzione! I dati visualizzati non sono stati sottoposti a validazione da parte dell'ateneo

Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 19
  • ???jsp.display-item.citation.isi??? 15
social impact