Pinning Properties of PLD-Obtained GdBa2Cu3O7-x Coated Conductors Doped With BaSnO3

This work is devoted to high-rate pulsed laser deposition of BaSnO
₃
-doped superconducting films on long buffered metal tape substrates with the use of pilot-scale equipment and common deposition conditions typical for commercial 2G high-temperature superconducting wire production at SuperOx Japan. BaSnO
₃
inclusions were found to grow as nanocolumns elongated along the vertical direction and having biaxial texture. With BaSnO3 doping, the angular dependence of critical current measured at 77 K became much more isotropic. At 77 K, the lift-factor (I
_c
/I
_c
^sf
) values in BaSnO
₃
-doped samples increased almost twice in 0.5-3 T magnetic field in perpendicular orientation; at the same time, the absolute critical current increased only by 10%. At 4.2 K, in 0.5-3 T perpendicular field, the absolute critical current in doped samples increased 1.8 times.