MAGNETOPLASMONS IN SYMMETRY DRIVEN BILAYER ELECTRON SYSTEM

The effect of space symmetry on magnetoplasmon charge density excitations in a weekly tunnel coupled bilayer electron system is considered. The magnetic field corresponds to the filling factor ν = 4. The energy of optic magnetoplasmon is not affected by space symmetry. Three other collective magnetoplasmon modes are determined by relations between parameters of asymmetry, tunnel parameter and energy of acoustic plasmon.