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Journal Articles Nanoscale Research Letters Year : 2011

Magnetotransport in quantum cascade detectors: analyzing the current under illumination

Abstract

Photocurrent measurements have been performed on a quantum cascade detector structure under strong magnetic field applied parallel to the growth axis. The photocurrent shows oscillations as a function of B. In order to describe that behavior, we have developed a rate equation model. The interpretation of the experimental data supports the idea that an elastic scattering contribution plays a central role in the behavior of those structures. We present a calculation of electron lifetime versus magnetic field which suggests that impurities scattering in the active region is the limiting factor. These experiments lead to a better understanding of these complex structures and give key parameters to optimize them further.
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Dates and versions

hal-00653018 , version 1 (16-12-2011)

Identifiers

  • HAL Id : hal-00653018 , version 1

Cite

François-Régis Jasnot, Nicolas Péré-Laperne, Louis-Anne de Vaulchier, Yves Guldner, Francesca Carosella, et al.. Magnetotransport in quantum cascade detectors: analyzing the current under illumination. Nanoscale Research Letters, 2011, 6, pp.206. ⟨hal-00653018⟩
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