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Magnetoplasmon excitations in an array of periodically modulated quantum wires

B. P. van Zyl·E. Zaremba
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Abstract

Motivated by the recent experiment of Hochgraefe et al., we have investigated the magnetoplasmon excitations in a periodic array of quantum wires with a periodic modulation along the wire direction. The equilibrium and dynamic properties of the system are treated self-consistently within the Thomas-Fermi-Dirac-von Weizsaecker approximation. A calculation of the dynamical response of the system to a far-infrared radiation field reveals a resonant anticrossing between the Kohn mode and a finite-wavevector longitudinal excitation which is induced by the density modulation along the wires. Our theoretical calculations are found to be in excellent agreement with experiment.

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B. P. van Zyl, E. Zaremba. 2000-11-08. Magnetoplasmon excitations in an array of periodically modulated quantum wires. https://doi.org/10.1103/physrevb.63.245317

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