Josephson Plasma Excitation and Vortex Oscillation Mode in Josephson Vortes State

I. Kakeya, T. Wada, K. Kadowaki +1

The Josephson plasma resonance has been investigated in Bi${}_2$Sr${}_2$CaCu${}_2$O${}_{8+\delta }$ single crystals in parallel magnetic fields to the $ab$-plane. We found two resonance modes; o…