Hole energy levels and intersubband absorption in modulation-doped Si/Si1-xGex multiple quantum wells.

@article{Fromherz1994HoleEL,
  title={Hole energy levels and intersubband absorption in modulation-doped Si/Si1-xGex multiple quantum wells.},
  author={Fromherz and Koppensteiner and Helm and F L Bauer and N{\"u}tzel and Abstreiter},
  journal={Physical review. B, Condensed matter},
  year={1994},
  volume={50 20},
  pages={15073-15085}
}