Structure of vortex liquid phase in irradiated BSCCO(2212) crystals
  The c-axis resistivity in irradiated and in pristine BSCCO(2212) crystals is measured as a function of the in-plane magnetic field component at fixed out-of-plane component B_\perp in the vortex liquid phase at T=67 K. From this data we extract the dependence of the phase difference correlation length inside layers on B_\perp and estimate the average length of pieces of vortex lines confined inside columnar defects as a function of the filling factor f=B_\perp / B_\phi. The maximum length, about 15 interlayer distances, is reached near f=0.35. 
N. Morozov(1), L.N. Bulaevskii(1), M.P. Maley(1), V. Thorsmolle(1),   A.E. Koshelev(2), A. Petrean(2), W.K. Kwok(2) ((1) Los...