Magnetoplasmon modes of a terahertz-laser-driven quantum well wire
School of Physics, University of Shahrood, Shahrood, Iran
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Accepted: 19 November 2015
Published online: 17 December 2015
A quantum well wire system with lateral parabolic confinement, under an intense terahertz radiation and a uniform quantizing magnetic field is considered. The exact electronic states of the system are determined by constructing unitary transformations. Then, by obtaining the response of the system to a weak probing potential, the dielectric function and the magnetoplasma modes of the system are calculated in the framework of RPA theory. Results indicate roton-like behaviour for the plasmon modes of the system.
© Società Italiana di Fisica and Springer-Verlag Berlin Heidelberg, 2015