TITLE

Tunnel injection into a Wannier–Stark ladder

AUTHOR(S)
England, P.; Helm, M.; Hayes, J. R.; Harbison, J. P.; Colas, E.; Florez, L. T.
PUB. DATE
February 1989
SOURCE
Applied Physics Letters;2/13/1989, Vol. 54 Issue 7, p647
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
We describe tunneling measurements of the electronic states of superlattices in which an electric field has destroyed the miniband structure. The tunneling characteristics reveal that the minibands collapse into localized Wannier–Stark states, which can be resolved in the first two quantum wells of the superlattice. The positions can be accounted for quantitatively by a combination of electrostatic and quantum mechanical effects.
ACCESSION #
9829951

 

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