237 citations · 576 across the 8 of their papers we have counts for
8 papers
Magnetic-field dependence of valley splitting for Si quantum wells grown on tilted SiGe substrates
Seungwon Lee, Paul von Allmen
The valley splitting of the first few Landau levels is calculated as a function of the magnetic field for electrons confined in a strained silicon quantum well grown on a tilted Si…
Zero valley splitting at zero magnetic field for strained Si/SiGe quantum wells grown on tilted substrates
Paul von Allmen, Seungwon Lee
The electronic structure for a strained Si/SiGe quantum well grown on a tilted substrate with periodic steps is calculated using a parameterized tight-binding method. For a zero ti…
Exchange in a silicon-based quantum dot quantum computer architecture
S. N. Coppersmith, Seungwon Lee, Paul von Allmen
In bulk silicon, intervalley electronic interference has been shown to lead to strong oscillations in the exchange coupling between impurity electronic wavefunctions, posing a seri…
Effect of anharmonicity of the strain energy on band offsets in semiconductor nanostructures
Olga L. Lazarenkova, Paul von Allmen, Fabiano Oyafuso +2
Anharmonicity of the inter-atomic potential is taken into account for the quantitative simulation of the conduction and valence band offsets for highly-strained semiconductor heter…
Effect of wetting layers on the strain and electronic structure of InAs self-assembled quantum dots
Seungwon Lee, Olga L. Lazarenkova, Fabiano Oyafuso +2
The effect of wetting layers on the strain and electronic structure of InAs self-assembled quantum dots grown on GaAs is investigated with an atomistic valence-force-field model an…
Effect of electron-nuclear spin interactions on electron-spin qubits localized in self-assembled quantum dots
Seungwon Lee, Paul von Allmen, Fabiano Oyafuso +2
The effect of electron-nuclear spin interactions on qubit operations is investigated for a qubit represented by the spin of an electron localized in a self-assembled quantum dot. T…