Superconducting Properties of Films Deposited From Micro-, Nanocrystalline and Optimally BZO-Doped YBCO Targets

摘要

Thin YBa$_{2}$Cu $_{3}$O$_{6+x}$ (YBCO) films are prepared by pulsed laser deposition (PLD) from pure micro- $(mu)$ and nanocrystalline (n) targets and a n-target optimally doped with 3.9 wt% BaZrO $_{3}$ (BZO). Effects of target grain size and doping on superconducting (SC) properties of the films are investigated using a SQUID magnetometer up to 5 T and transport measurements in pulsed magnetic fields up to 30 T.