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Effect of electromagnetic retardation on spectrum of edge plasmons

Keywords:

A.A. Zabolotnykh – Post-graduate Student, Trainee Researcher, Kotelnikov IRE RAS (Moscow). E-mail: zabolotnyh_andre@mail.ru V.A. Volkov – Dr.Sc. (Phys.-Math.), Chief Research Scientist, Kotelnikov IRE RAS (Moscow)


We calculate spectrum of edge plasmon, i.e. plasmon running along the edge of two-dimensional electron system, taking into account electromagnetic retardation effect. Relaxation of plasmon is characterized in terms of bulk relaxation time τ. We show the quality factor of the edge mode can exceed unity even in the regime of rapid collisions ωτ<<1.
References:

 

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