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Direct measurement of quantum phases in graphene via photoemission spectroscopy
Choongyu Hwang, Cheol-Hwan Park, David A. Siegel +3
Quantum phases provide us with important information for understanding the fundamental properties of a system. However, the observation of quantum phases, such as Berry's phase and…
Electron-Phonon Coupling in Highly-Screened Graphene
David A. Siegel, Choongyu Hwang, Alexi V. Fedorov +1
Photoemission studies of graphene have resulted in a long-standing controversy concerning the strength of the experimental electron-phonon interaction in comparison with theoretica…
Three-Fold Diffraction Symmetry in Epitaxial Graphene and the SiC Substrate
David A. Siegel, Shuyun Zhou, Farid El Gabaly +3
The crystallographic symmetries and spatial distribution of stacking domains in graphene films on SiC have been studied by low energy electron diffraction (LEED) and dark field ima…
Many-body interactions in quasi-freestanding graphene
David A. Siegel, Cheol-Hwan Park, Choongyu Hwang +4
The Landau-Fermi liquid picture for quasiparticles assumes that charge carriers are dressed by many-body interactions, forming one of the fundamental theories of solids. Whether th…
Quasi-Freestanding Multilayer Graphene Films on the Carbon Face of SiC
David A. Siegel, Choongyu Hwang, Alexei V. Fedorov +1
The electronic band structure of as-grown and doped graphene grown on the carbon face of SiC is studied by high-resolution angle-resolved photoemission spectroscopy, where we obser…