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1996 | 90 | 5 | 895-898
Article title

Tunnelling of Direct and Indirect Excitons in Slightly Asymmetric Double Quantum Wells

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EN
Abstracts
EN
We report the first studies of luminescence spectra from asymmetric double quantum wells of GaAs with widths around 100 Å differing by only one (2.8 Å) or two monolayers. Studies of the position and intensity of the direct and indirect exciton lines suggest the existence of acoustic phonon-assisted tunnelling between exciton states separated by a few meV. At temperatures 10-20 K the electron tunnelling process is fast enough to maintain thermal equilibrium between these direct and indirect excitons which are connected with holes in the same quantum well.
Keywords
EN
Publisher

Year
Volume
90
Issue
5
Pages
895-898
Physical description
Dates
published
1996-11
Contributors
author
  • A.F. Ioffe Physical-Technical Institute, Russian Academy of Sciences, 26 Polytechnicheskaya Str., 194021, St. Petersburg, Russia
author
  • A.F. Ioffe Physical-Technical Institute, Russian Academy of Sciences, 26 Polytechnicheskaya Str., 194021, St. Petersburg, Russia
author
  • A.F. Ioffe Physical-Technical Institute, Russian Academy of Sciences, 26 Polytechnicheskaya Str., 194021, St. Petersburg, Russia
author
  • A.F. Ioffe Physical-Technical Institute, Russian Academy of Sciences, 26 Polytechnicheskaya Str., 194021, St. Petersburg, Russia
  • A.F. Ioffe Physical-Technical Institute, Russian Academy of Sciences, 26 Polytechnicheskaya Str., 194021, St. Petersburg, Russia
author
  • Physics Department, Nottingham University, University Park NG7 2RD, Nottingham, U.K.
author
  • Physics Department, Nottingham University, University Park NG7 2RD, Nottingham, U.K.
author
  • Physics Department, Nottingham University, University Park NG7 2RD, Nottingham, U.K.
References
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Publication order reference
Identifiers
YADDA identifier
bwmeta1.element.bwnjournal-article-appv90z509kz
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