38 citations · 82 across the 5 of their papers we have counts for
5 papers
Homologous self-assembled superlattices: What causes their periodic polarity switching? Review, model, and experimental test
Varun Thakur, Dor Benafsha, Yury Turkulets +4
Quantum semiconductor structures are commonly achieved by bandgap engineering that relies on the ability to switch from one semiconductor to another during their growth. Growth of…
Mechanisms of GaN quantum dot formation during nitridation of Ga droplets
H. Lu, C. Reese, S. Jeon +6
We have examined the formation mechanisms of GaN quantum dots (QDs) via annealing of Ga droplets in a nitrogen flux. We consider the temperature and substrate dependence of the siz…
Why do nanowires grow with their c-axis vertically-aligned in the absence of epitaxy?
Almog R. Azulay, Yury Turkulets, Davide Del Gaudio +2
Images of uniform and upright nanowires are fascinating, but often, they are quite puzzling, when epitaxial templating from the substrate is clearly absent. Here, we reveal the phy…
Generation and remote detection of THz sound using semiconductor superlattices
M. Trigo, T. A. Eckhause, J. K. Wahlstrand +3
The authors introduce a novel approach to study the propagation of high frequency acoustic phonons in which the generation and detection involves two spatially separated superlatti…
Observation of Surface-Avoiding Waves: A New Class of Extended States in Periodic Media
M. Trigo, T. A. Eckhause, M. Reason +2
Coherent time-domain optical experiments on GaAs-AlAs superlattices reveal the exis-tence of an unusually long-lived acoustic mode at ~ 0.6 THz, which couples weakly to the environ…