Has a Josephson-Plasma Mode Been Observed in Layered Superconductors?
E. B. Sonin
DOI 10.1103/PhysRevLett.79.3732 · Physical Review Letters
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Abstract
The plasma mode in layered superconductors is analyzed using the continuous approach for an anisotropic superconductor and the Lawrence-Doniach model. The analysis predicts, for the plasma frequency, a magnetic field dependence different from that of magnetoabsorption resonances recently observed in various materials and conditions. This puts in doubt their Josephson-plasma-mode interpretation commonly accepted by experimentalists.
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