59 citations · 159 across the 12 of their papers we have counts for
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cond-mat.mes-hall2003★ 59 cited
Ultrafast spectroscopy of propagating coherent acoustic phonons in GaN/InGaN heterostructures
Rongliang Liu, Chang Sub Kim, G. D. Sanders +6
We show that large amplitude, coherent acoustic phonon wavepackets can be generated and detected in InGaN/GaN epilayers and heterostructures in femtosecond pump-probe d…
cond-mat.mes-hall2003
Intra-Landau-level collective excitations in a bilayer disordered electronic system
Samvel M. Badalyan, Chang Sub Kim
We investigate intra-Landau-level collective excitations in a bilayer disordered two-dimensional electron system exposed to a perpendicular magnetic field. The energy spectrum is c…
cond-mat.mes-hall2003★ 3 cited
Frictional magnetodrag between spatially separated two-dimensional electron systems: Coulomb versus phonon mediated electron-electron interaction
Samvel M. Badalyan, Chang Sub Kim
We study the frictional drag due to Coulomb and phonon mediated electron-electron interaction in a double layer electron system exposed to a perpendicular magnetic field. Within th…