270 citations · 1.2k across the 16 of their papers we have counts for
16 papers · 1 filter
Real-time observation of epitaxial graphene domain reorientation
Paul C. Rogge, Konrad Thürmer, Michael E. Foster +3
Graphene films grown by vapor deposition tend to be polycrystalline due to the nucleation and growth of islands with different in-plane orientations. Here, using low-energy electro…
Metal-insulator transition of the reduced surface of yttria-stabilized zirconia near Pt electrodes
D. A. Siegel, F. El Gabaly, K. F. McCarty +1
The electrochemical reactions of solid oxide fuel cells occur in the region where gas-phase species, electrode, and electrolyte coincide. When the electrode is an ionic insulator a…
Order-disorder phase transition on the (100) surface of magnetite
Norman C. Bartelt, Shu Nie, Elena Starodub +5
Using low-energy electron diffraction, we show that the room-temperature reconstruction of FeO(100) reversibly disorders at 450 $^…
Energetics and diffusion of gold in bismuth telluride
Michael C. Shaughnessy, Josh D. Sugar, Norm C. Bartelt +1
We have coupled electron microscopy and energy dispersive spectroscopy experiments with \textit{ab-initio} modeling to study the solubility and diffusion of Au in BiTe. We…
Viable thermionic emission from graphene-covered metals
Elena Starodub, Norman C. Bartelt, Kevin F. McCarty
Thermionic emission from monolayer graphene grown on representative transition metals, Ir and Ru, is characterized by low-energy electron microscopy (LEEM). Work functions were det…
Graphene/Au(111) interaction studied by scanning tunneling microscopy
Shu Nie, Norman C. Bartelt, Joseph M. Wofford +3
We have used scanning tunneling microscopy to study the structure of graphene islands on Au(111) grown by deposition of elemental carbon at 950°C. Consistent with low-energy electr…