Compression for data archiving and backup revisited
Corneliu Constantinescu
SPIE Optical Engineering + Applications 2009
We report the observation of low frequency collective excitations of the two-dimensional electron system in a GaAs/GaAlAs heterojunction in a magnetic field. The excitations are present for temperatures less than 2 K and fields corresponding to filling factors between ν = 1 2 and ν = 7. Their dispersion relation is linear in the wave vector k, and shows no evidence of a gap. These modes vanish between the Hall plateaus and elsewhere their propagation velocity follows a H-1 1n(αH) field dependence. The features of these modes are consistent with a propagating perimeter wave in a quantum 2D Coulomb system. © 1987.
Corneliu Constantinescu
SPIE Optical Engineering + Applications 2009
Julien Autebert, Aditya Kashyap, et al.
Langmuir
Dipanjan Gope, Albert E. Ruehli, et al.
IEEE T-MTT
S. Cohen, J.C. Liu, et al.
MRS Spring Meeting 1999