How Valley-Orbit States in Silicon Quantum Dots Probe Quantum Well Interfaces
How Valley-Orbit States in Silicon Quantum Dots Probe Quantum Well Interfaces
The energies of valley-orbit states in silicon quantum dots are determined by an as yet poorly understood interplay between interface roughness, orbital confinement, and electron interactions. Here, we report measurements of one- and two-electron valley-orbit state energies as the dot potential is modified by changing gate voltages, and we calculate …