Josephson Plasma Mode in Fields Parallel to Layers of Bi2Sr2CaCu2O8+δ
I. Kakeya, T. Wada, R. Nakamura, K. Kaodowaki
Abstract
Josephson plasma resonance measurements under magnetic fields parallel to the CuO2 layers as functions of magnetic field, temperature, and microwave frequency have been performed in Bi2Sr2CaCu2O8+δ single crystals with doping range being from optimal to under-doped side. The feature of the resonance is quite unique and cannot be explained by the conventional understandings of the Josephson plasma for H c, that requires a new theory including coupling effect between Josephson vortex lattice and Josephson plasma.
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