Abstract
Josephson vortices in Bi 2Sr 2CaCu 2O 8+ δ single crystals have been studied to measure the vortex-flow resistance with the current perpendicular to the superconducting layers, sweeping the parallel magnetic fields. In the flow resistance, we have found novel periodic oscillations. The period of the oscillations corresponds to adding “one” flux quantum per “two” intrinsic Josephson junctions. It is considered that the oscillations take place with a coherent motion of the vortices in the dynamical flow. These results suggest that the Josephson vortices form a triangular lattice in the ground state, related to the matching effect between the sample width and the lattice spacing along the layers. It is also suggested that they will be applicable to a new type of magnetic sensor.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
