JOSEPHSON PLASMA RESONANCE IN SUPERCONDUCTING MULTILAYERS

We derive an analytical solution for the Josephson plasma resonance of superconducting multilayers. This analytical solution is derived main ly for low-T-c systems with magnetic coupling between the superconduct ing layers. but many features of our results are more general, and thu s an application to the recently derived plasma resonance phenomena fo r high-T-c superconductors of the Bi2Sr2CaCu2Ox type is discussed. Our approach allows us to give full details of the different plasma reson ance excitations, and we also predict the existence of new nonlinear e ffects, so far only identified in single junctions.