TY - JOUR
T1 - Anomalous Quantum-Confined Stark Effects in Stacked [Formula presented] Self-Assembled Quantum Dots
AU - Sheng, Weidong
AU - Leburton, Jean Pierre
PY - 2002
Y1 - 2002
N2 - Vertically stacked and coupled [Formula presented] self-assembled quantum dots (SADs) are predicted to exhibit strong hole localization even with vanishing separation between the dots, and a nonparabolic dependence of the interband transition energy on the electric field, which is not encountered in single SAD structures. Our study based on an eight-band strain-dependent [Formula presented] Hamiltonian indicates that this anomalous quantum confined Stark effect is caused by the three-dimensional strain field distribution which influences drastically the hole states in the stacked SAD structures.
AB - Vertically stacked and coupled [Formula presented] self-assembled quantum dots (SADs) are predicted to exhibit strong hole localization even with vanishing separation between the dots, and a nonparabolic dependence of the interband transition energy on the electric field, which is not encountered in single SAD structures. Our study based on an eight-band strain-dependent [Formula presented] Hamiltonian indicates that this anomalous quantum confined Stark effect is caused by the three-dimensional strain field distribution which influences drastically the hole states in the stacked SAD structures.
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U2 - 10.1103/PhysRevLett.88.167401
DO - 10.1103/PhysRevLett.88.167401
M3 - Article
C2 - 11955264
AN - SCOPUS:4243650828
SN - 0031-9007
VL - 88
JO - Physical review letters
JF - Physical review letters
IS - 16
ER -