Longitudinal-optical-phonon assisted tunneling in tunneling bi-quantum well structures

Shunichi Muto*, Tsuguo Inata, Atsushi Tackeuchi, Yoshihiro Sugiyama, Toshio Fujii

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

35 Citations (Scopus)


We discuss the electron tunneling time observed in a new AlGaAs/GaAs superlattice structure, the tunneling bi-quantum well (TBQ). To calculate the nonresonant tunneling time, we made experiments on resonant tunneling to confirm that the 60% rule of conduction-band discontinuity accurately evaluates the free tunneling probability of electrons. We found that the observed recovery time agrees quite well with the calculated longitudinal optical phonon emission tunneling time for thin (≤ 10 monolayers) barriers.

Original languageEnglish
Pages (from-to)2393-2395
Number of pages3
JournalApplied Physics Letters
Issue number21
Publication statusPublished - 1991
Externally publishedYes

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)


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