Quantum conduction through double-bend electron waveguide structures

T. Kawamura, J. P. Leburton

Research output: Contribution to journalArticlepeer-review

Abstract

Quantum transport properties through a variety of electron waveguide structures that have a double-bend geometry are investigated using the recursive Greens function technique. The conductance is calculated as a function of the chemical potential using the two-probe, multichannel Landauer-Büttiker formula. The results for the right-angle double-bend structure are in agreement with previous calculations based on mode-matching techniques. For multiple double-bend structures in series, the existence of an energy gap between the first and second subband threshold energies where the conductance is suppressed is shown. The effects of disorder and thermal broadening on the conductance are also investigated.

Original languageEnglish (US)
Pages (from-to)3577-3579
Number of pages3
JournalJournal of Applied Physics
Volume73
Issue number7
DOIs
StatePublished - 1993

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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