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Phonon-assisted tunnelling in double quantum well structures

✍ Scribed by S. Khan-ngern; I.A. Larkin

Publisher
Elsevier Science
Year
2000
Tongue
English
Weight
131 KB
Volume
266
Category
Article
ISSN
0375-9601

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✦ Synopsis

Ε½

. We calculate the tunnelling rates for interwell transitions due to electron-longitudinal-optical phonon LO-phonon scattering in GaAs-AlGaAs DQW heterostructures starting from the Frohlich interaction and Fermi's golden rule. The rates Β¨Ε½ .

) are investigated as functions of the difference in energy between the E level of the wider quantum well QW1 and the E 1 1 Ε½ . level of the narrower quantum well QW2 . We also compare our calculations of the LO-phonon assisted tunnelling with the conventional resonant tunnelling.

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