Microcantilever studies of angular field dependence of vortex dynamics in Bi2Sr2CaCu2O8-x

Using a nanogram-sized single crystal of Bi2Sr2CaCu2O8-x attached to a microcantilever we demonstrate in a direct way that in magnetic fields nearly parallel to the ab plane the magnetic field penetrates the sample in the form of Josephson vortices rather than in the form of a tilted vortex lattice. We further investigate the relation between the Josephson vortices and the pancake vortices generated by the perpendicular field component