Interaction between optical phonons and Josephson vortices in layered superconductors

The effect of optical phonons on the stability of the in-phase motion regime of Josephson vortices in a layered superconductor has been studied by using an expression for the dielectric constant of a layered high-temperature superconductor. The dispersion characteristics of linear waves have been analyzed. It has been shown that the in-phase motion regime of the Josephson vortices can be spontaneously established in the layered superconductor.