Frontiers in Physics (Mar 2020)

Correlation Between Bands Structure and Quantum Magneto Transport Properties in InAs/GaxIn1−xSb Type II Superlattice for Infrared Detection

  • Nassima Benchtaber,
  • Abdelhakim Nafidi,
  • Driss Barkissy,
  • Abderrezak Boutramine,
  • Merieme Benaadad,
  • Samir Melkoud,
  • Es-Said Es-Salhi,
  • Fatiha Chibane

DOI
https://doi.org/10.3389/fphy.2020.00052
Journal volume & issue
Vol. 8

Abstract

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We have used the envelope function formalism to investigate the bands structure of LWIR type II SL InAs (d1 = 2. 18d2)/In0.25Ga0.75Sb(d2 = 21.5 Å). Thus, we extracted optical and transport parameters as the band gap, cut off wavelength, carriers effective mass, Fermi level and the density of state. Our results show that the higher optical cut-off wavelength can be achieved with smaller layer thicknesses. The semiconductor-semi metal transition was studied as a function of temperature. Our results permit us the interpretations of Hall and Shubnikov-de Haas effects. These results are in agreement with experimental results in literature and a guide for engineering infrared detectors.

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