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The energy loss of high-velocity charges in the structures with two-dimensional electron gas

The energy loss of high-velocity charges at the excitation of eigen modes in mediums containing two-dimensional plasma layer were studied. The following structures were studied: semiconductor (or dielectric) cylinder-plasma layer-vacuum. The corresponding dispersion equations describing eigen modes of these systems were obtained. The energy loss of the point charge moving linear and uniformly above cylinder or inside it were found. The features of energy loss of the moving charged ring covering the structure, particularly nanotube, were studied.