Hot-electron bistability in quantum-dot structures

S. M. Goodnick, J. C. Wu, M. N. Wybourne, Doran D. Smith

Research output: Contribution to journalArticle

14 Scopus citations

Abstract

We present a theoretical analysis of hot-electron bistability in quantum-dot structures. An energy balance approach is used to demonstrate the existence of negative differential conductance due to thermal runaway of the carriers in the dot structure. This runaway is shown to arise from heating of carriers in the quantum dot by incident electrons injected over the barrier of the input constriction. Excellent agreement is obtained with recent experimental evidence of bistability in the current-voltage characteristics of laterally confined quantum dots [J. C. Wu, M. N. Wybourne, C. Berven, S. M. Goodnick, and D. D. Smith, Appl. Phys. Lett. 61, 1 (1992)].

Original languageEnglish (US)
Pages (from-to)9150-9153
Number of pages4
JournalPhysical Review B
Volume48
Issue number12
DOIs
StatePublished - Jan 1 1993
Externally publishedYes

ASJC Scopus subject areas

  • Condensed Matter Physics

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