107 citations · 136 across the 5 of their papers we have counts for
8 papers
Optical emission spectroscopy study of competing phases of electrons in the second Landau level
A. L. Levy, U. Wurstbauer, Y. Y. Kuznetsova +6
Quantum phases of electrons in the filling factor range are probed by the weak optical emission from the partially populated second Landau level and spin wave measu…
Graphene growth on h-BN by Molecular Beam Epitaxy
Jorge M. Garcia, Ulrich Wurstbauer, Antonio Levy +10
The growth of single layer graphene nanometer size domains by solid carbon source molecular beam epitaxy on hexagonal boron nitride (h-BN) flakes is demonstrated. Formation of sing…
Experimental evidence of low-lying gapped excitations in the quantum fluid at nu=5/2
U. Wurstbauer, K. W. West, L. N. Pfeiffer +1
The low-lying neutral excitation spectrum of the incompressible quantum Hall fluid at is investigated by inelastic light scattering. Gapped modes are observable only in a v…
Molecular beam growth of graphene nanocrystals on dielectric substrates
Ulrich Wurstbauer, Theanne Schiros, Cherno Jaye +9
We demonstrate the growth of graphene nanocrystals by molecular beam methods that employ a solid carbon source, and that can be used on a diverse class of large area dielectric sub…
Imaging ellipsometry of graphene
Ulrich Wurstbauer, Christian Röling, Ursula Wurstbauer +4
Imaging ellipsometry studies of graphene on SiO2/Si and crystalline GaAs are presented. We demonstrate that imaging ellipsometry is a powerful tool to detect and characterize graph…
Circular ac Hall Effect
J. Karch, P. Olbrich, M. Schmalzbauer +13
We report the observation of the circular ac Hall effect where the current is solely driven by the crossed ac electric and magnetic fields of circularly polarized radiation. Illumi…