Figure 1.  Schematic representation of a SL band structure used
in this study. Minibands for heavy hole levels, εhh,1 ,
minigaps, subbands, and Fermi level, EF, are shown. The zero of
energy was considered at the top of the Coulomb potential at the
barrier. Horizontal dashed lines indicate the bottom of the
first miniband and the top of the second miniband, respectively.
dos Santos et al. Nanoscale Research Letters 2011 6:175  
doi:10.1186/1556-276X-6-175 Download authors' original image