This article is cited in 5 papers

Superconductivity

Wave properties of surface polaritons in the dielectric–high-temperature superconductor–dielectric structure

A. S. Abramov, I. O. Zolotovskii, D. G. Sannikov, D. I. Sementsov

Ulyanovsk State University

Abstract: The specific features of the surface polariton propagation in the dielectric–high-temperature superconductor–dielectric symmetric structure have been investigated in the temperature region $T < T_c/2$, where the structure can be considered as non-absorbing. It has been shown that the dispersion curves contain two polariton branches, i.e., high-frequency and low-frequency ones, which correspond to symmetric and antisymmetric distributions of transverse components of the wave field. For the high-frequency branch, there is a propagation constant range where the group velocity and energy flux directions are opposite to the phase velocity direction. In this range, a significant deceleration of polariton waves is also observed.

Received: 20.10.2014

 English version: Physics of the Solid State, 2015, 57:4, 652–658

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