Strongly enhanced flux pinning in the YBa2Cu3O7 − x films with the co-doping of BaTiO3 nanorod and Y2O3 nanoparticles at 65 K |
(a) Critical current density versus magnetic field and (b) the pinning force versus magnetic field parallel to the c axis of the different doped YBCO films at different temperature. The pure YBCO film, BTO-doped YBCO film at 77 K,[ 18 ] and the 6 mol% BTO + 10 mol% yttrium excess doped YBCO at 77 K and 65 K. |