Abstract
Band offsets at the heterointerface are calculated for various combinations of InAlGaAs/AlGaAs heteropairs that can be synthesized on GaAs substrates in the layer-by-layer pseudomorphic growth mode. Patterns which make it possible to obtain an asymmetric barrier layer providing the almost obstruction-free transport of holes and the highest possible barrier height for electrons are found. The optimal compositions of both compounds ((InAlGaAs)-Al-0.232-Ga-0.594-As-0.174/(AlGaAs)-Ga-0.355-As-0.645) at which the flux of electrons across the barrier is at a minimum are determined with consideration for the critical thickness of the indium-containing quaternary solid solution.
Original language | English |
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Journal | Semiconductors |
Volume | 49 |
Issue number | 7 |
Pages (from-to) | 935-938 |
ISSN | 1063-7826 |
DOIs | |
Publication status | Published - 2015 |
Keywords
- PHYSICS,
- Physics
- Magnetism, Magnetic Materials
- Physics, general
- Physics and Astronomy