Fiske modes in 0-p Josephson junctions

We analyze the influence of an unconventional symmetry order parameter on the dynamical properties of the interface in a grain boundary bicrystal Josephson junction. The self-resonance modes, known as Fiske steps, are calculated by assuming the presence of an arbitrary number of 0- singularities in the phase difference between the two superconducting films. Simple expressions are obtained useful to fit experimental data.