3D XY and lowest Landau level fluctuations in deoxygenated YBCO thin films

K. Moloni, M. Friesen, Shi Li +4

Conductivity measurements reflect vortex solid melting in YBCO films. Field-independent glass exponents nu_g=1.9 and z_g=4.0 describe the transition T_g(H) for 0<H<26 T. At low fie…