240 citations · 712 across the 12 of their papers we have counts for
5 papers · 1 filter
Quasiparticle bandgap engineering of graphene and graphone on hexagonal boron nitride substrate
Neerav Kharche, Saroj K. Nayak
Graphene holds great promise for post-silicon electronics, however, it faces two main challenges: opening up a bandgap and finding a suitable substrate material. In principle, grap…
Effects of Interface Disorder on Valley Splitting in SiGe/Si/SiGe Quantum Wells
Zhengping Jiang, Neerav Kharche, Timothy Boykin +1
A sharp potential barrier at the Si/SiGe interface introduces valley splitting (VS), which lifts the 2-fold valley degeneracy in strained SiGe/Si/SiGe quantum wells (QWs). This wor…
Effect of Layer-Stacking on the Electronic Structure of Graphene Nanoribbons
Neerav Kharche, Yu Zhou, Kevin P. O'Brien +2
The evolution of electronic structure of graphene nanoribbons (GNRs) as a function of the number of layers stacked together is investigated using \textit{ab initio} density functio…
Engineered valley-orbit splittings in quantum confined nanostructures in silicon
R. Rahman, J. Verduijn, N. Kharche +4
An important challenge in silicon quantum electronics in the few electron regime is the potentially small energy gap between the ground and excited orbital states in 3D quantum con…
Accurate six-band nearest-neighbor tight-binding model for the pi-bands of bulk graphene and graphene nanoribbons
Timothy B. Boykin, Mathieu Luisier, Gerhard Klimeck +4
Accurate modeling of the pi-bands of armchair graphene nanoribbons (AGNRs) requires correctly reproducing asymmetries in the bulk graphene bands as well as providing a realistic mo…