Surface plasma waves across the layers of intrinsic Josephson junctions

We predict surface electromagnetic waves propagating across the layers of intrinsic Josephson junctions. We find the spectrum of the surface waves, and study the distribution of the electromagnetic field inside and outside the superconductor. The profile of the amplitude oscillations of the electric-field component of such waves is peculiar: initially, it increases toward the center of the superconductor and, after reaching a crossover point, decreases exponentially.