Other
Scientific paper
Mar 2000
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2000phrvb..61.8369b&link_type=abstract
Physical Review B (Condensed Matter and Materials Physics), Volume 61, Issue 12, March 15, 2000, pp.8369-8374
Other
15
Electroluminescence, Far Infrared, Galvanomagnetic And Other Magnetotransport Effects, Diamagnetic And Cyclotron Resonances
Scientific paper
Intersubband electroluminescence has been investigated in a quantum cascade structure based on a photon-assisted tunneling transition designed for far-infrared emission. Transport measurements in the presence of a strong magnetic field perpendicular to the layers have been performed showing a strong increase of the lifetime increasing the magnetic field. In addition, Stark-cyclotron resonances were observed when the n=0 Landau level of an excited state is resonant with a Landau level of higher index of the lower state. Finally, good agreement was found between the electronic spectrum derived by the spectral characterization of the luminescence and the location of the Stark-cyclotron resonances in the transport data.
Beck Mattias
Blaser Stéphane
Faist Jérôme
Oesterle Ursula
Rochat Michel
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