Effect of Zr addition and magnetic field process on the Jc property of CVD-HoBa2Cu3O7−x films

► One of the works which brought a rapid Jc increase of YBCO films. ► YBCO films were fabricated by a chemical vapor deposition technique in magnetic fields. ► Zr were added to introduce pining centers in YBCO films. ► Magnetic field showed a positive effect on the Jc improvement.