Physics – Condensed Matter – Superconductivity
Scientific paper
2001-01-10
Physics
Condensed Matter
Superconductivity
11 RevTeX pages, no figures
Scientific paper
10.1103/PhysRevB.63.214514
We analyze consequences of dynamical modulations of Josephson current by non-polar lattice mode in the Josephson junction barrier. In the high $T_c$ junctions, the effect of such modulations can be anomalously strong due to the proximity of the insulating barrier to the superconducting state. Accordingly, the interconversion of sound (as well as other non-polar phonons) and the Josephson plasma oscillations mediated by stationary Josephson currents, which may be present in the junction due to various reasons, becomes possible. We suggest that this effect can be employed for imaging of the stationary Josephson currents. Estimates of the effect are given.
Boyko Vladimir S.
Kuklov A. B.
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