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Title:

Nonequilibrium phonon generation in coupled Wannier-Stark ladders from a semiconductor superlattice in a three-terminal device

Document type:
Zeitschriftenaufsatz
Author(s):
Rizzi, F.; Manenti, M.; Di Carlo, A.; Lugli, P.
Abstract:
We present an experimental and a theoretical study on the midinfrared electroluminescence associated with transitions between electric-field-induced conduction states, forming Wannier-Stark (WS) ladders, in a strongly coupled GaAs∕AlAs superlattice inserted in a heterostructure bipolar transistorlike device. Electroluminescence shows wide tunability (100–210meV) of the diagonal intra-WS radiative transition, up to the merging with the vertical inter-WS emission, at constant injected emitter cur...     »
Keywords:
Phonons Superlattices Electric fields Electroluminescence Semiconductors
Journal title:
J. Appl. Phys. 99, 124504 (2006)
Year:
2006
Year / month:
2006-06
Quarter:
2. Quartal
Month:
Jun
Language:
en
Fulltext / DOI:
doi:10.1063/1.2206088
WWW:
http://scitation.aip.org/content/aip/journal/jap/99/12/10.1063/1.2206088
Publisher:
AIP Publishing LLC.
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