Journal
PHYSICAL REVIEW B
Volume 94, Issue 11, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevB.94.115310
Keywords
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Funding
- Russian-French International Laboratory ILNACS
- Russian Foundation for Basic Research (RFBR) [14-02-00123, 15-32-20828]
- European Union 7th Framework Programme DEEPEN [604416]
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We show that for lattice-mismatched zinc-blende-type (110)-grown quantum wells a significant contribution to the zero-magnetic-field spin splitting of electron subbands comes from strain-induced spin-orbit coupling. Combining the envelope function theory and atomistic tight-binding approach, we calculate spin-orbit splitting constants for realistic quantum wells. It is found that the strain due to lattice mismatch in conventional GaAs/AlGaAs structures may noticeably modify the spin splitting while in InGaAs/GaAs structures it plays a major role and may even change the sign of the spin splitting constant.
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