MAGNETOPLASMON MODE IN CONNECTED QUANTUM-WIRE PAIRS

We study the magnetoplasma excitations of held-effect-induced quantum- win lattices with a unit cell that contains two closely spaced electro n channels. The far-infrared-transmission spectra contain an additiona l mode that is not present in lattices with a simple unit cell investi gated previously. We show with a classical model as well as by quantum -mechanical calculations that this mode can be explained by an interwi re motion of the electrons that is characteristic for the double-wire system.