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High sensitivity of electroreflectance to stark-ladder transitions in a GaAs/AlAs superlattice

✍ Scribed by M. Nakayama; I. Tanaka; T. Doguchi; H. Nishimura; K. Kawashima; K. Fujiwara


Publisher
Elsevier Science
Year
1991
Tongue
English
Weight
318 KB
Volume
77
Category
Article
ISSN
0038-1098

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Dynamic localization leading to full sup
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We demonstrate that a strong THz-field (3.9 THz) can lead to full supression of the dc current through a GaAs/AlAs superlattice that shows, at room temperature, negative differential conductance. The miniband width ( = 50 meV) was much larger than the quantum energy of the radiation (16 meV). Using