741 citations · 3.6k across the 31 of their papers we have counts for
13 papers · 1 filter
A scanning probe microscopy approach for identifying defects in aluminum oxide
Leah Tom, Zachary J. Krebs, Joel B. Varley +8
The coherence of quantum dot qubits fabricated in semiconductors is often limited by charge noise from defects in gate dielectrics, which are material- and process-dependent. Chara…
Imaging the diffusive-to-ballistic crossover of magnetotransport in graphene
Zachary J. Krebs, Wyatt A. Behn, Keenan J. Smith +6
Scanning tunneling potentiometry (STP) is used to probe the local, current-induced electrochemical potential of carriers in graphene near circular electrostatic barriers in an out-…
Enhancing two-photon spontaneous emission in rare earths using graphene and graphene nanoribbons
Colin Whisler, Gregory Holdman, D. D. Yavuz +1
The enhancement of two-photon spontaneous emission (2PSE) from trivalent and divalent rare earth ions in proximity to graphene and graphene nanoribbons is calculated for achievable…
Imaging the breaking of electrostatic dams in graphene for ballistic and viscous fluids
Zachary J. Krebs, Wyatt A. Behn, Songci Li +5
The flow of charge carriers in materials can, under some circumstances, mimic the flow of viscous fluids. In order to visualize the consequences of such effects, new methodologies…
Mid-Infrared Radiative Emission from Bright Hot Plasmons in Graphene
Laura Kim, Seyoon Kim, Pankaj K. Jha +2
The decay dynamics of excited carriers in graphene have attracted wide scientific attention, as the gapless Dirac electronic band structure opens up relaxation channels that are no…
Spatially resolving density-dependent screening around a single charged atom in graphene
Dillon Wong, Fabiano Corsetti, Yang Wang +8
Electrons in two-dimensional graphene sheets behave as interacting chiral Dirac fermions and have unique screening properties due to their symmetry and reduced dimensionality. By u…