抄録
We report the longitudinal magnetic field effect on BaHfO3 (BHO)-doped-multilayered SmBa2Cu3Oy (SmBCO) films fabricated on single-crystalline substrates by pulsed laser deposition method. This longitudinal magnetic field effect was observed under the force-free state and this peculiar state caused the gain of the critical current density (Jc) with a peak against magnetic fields. We have reported that the Jc peak appears on multilayered SmBCO films with short BHO nanorods. In this study, we observed the remarkable Jc gain by up to 32% compared with the Jc in self-field. In addition, we measured the Jc-B curves at several temperatures.
Schematic drawing of the pinned flux line near the film surface under the force-free state.
