Time-dependent many-particle simulation for resonant tunneling diodes: Interpretation of an analytical small-signal equivalent circuit

Fabio Lorenzo Traversa, Emanuela Buccafurri, Alfonso Alarcón, Guillermo Albareda, Raphal Clerc, Francis Calmon, Alain Poncet, Xavier Oriols

Research output: Contribution to journalArticleResearchpeer-review

25 Citations (Scopus)

Abstract

A full many-particle (beyond the mean-field approximation) electron quantum-transport simulator, which is named BITLLES, is used to analyze the transient current response of resonant tunneling diodes (RTDs). The simulations have been used to test an analytical (free-fitting parameters) small-signal equivalent circuit for RTDs under stable direct-current-biased conditions. The comparison provides an excellent agreement and furnishes a way to physically interpret each circuit element. In addition, a nonlinear novel RTD behavior in the negative differential conductance region has been established, i.e. asymmetric time constants in the RTD current response when highlow or lowhigh voltage steps are considered. © 2011 IEEE.
Original languageEnglish
Article number5766729
Pages (from-to)2104-2112
JournalIEEE Transactions on Electron Devices
Volume58
Issue number7
DOIs
Publication statusPublished - 1 Jul 2011

Keywords

  • Equivalent circuits
  • Monte Carlo methods
  • numerical simulation
  • resonant tunneling devices

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