Abstract
Some properties of vortices in layered superconductors or superconducting structures {S,I} or {S,N} are analyzed. Josephson-like vortex lattice appears in a magnetic field H e | parallel to the layers. We show that in the long-wave limit the oscillation spectrum of the J-vortex lattice is sound-like and weakly damped. By varying H e | one can observe a resonance absorption of an external microwave power caused by the excitation of the “magnetic sound” in a sample. The case of an inclined magnetic field H e = (H e |,H e ⊥) is considered also. If the components H e | and H e ⊥ are high enough, two mutually perpendicular lattices consisting of the J and A-vortices coexist in the sample. It turns out that the critical current flowing across the layers j c may depend on H e nonmonotonously because the A-vortices play a role of pinning centers for more mobile J-vortices.
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