1 Meter Long Thin Film Tape with High Jc of 1.5 × 105A/cm2 Fabricated by Pulsed Laser Deposition

Long and high Jc YBCO thin film tapes were successfully fabricated using flexible Ni-based alloy substrates by continuous PLD technique. Maximum Jc value of 1.5×105A/cm2(77.3K, 0T) over the whole length of 1 meter was achieved to enhance in-plane alignment of YBCO layer. The Jc value of 3.0×105A/cm2(77.3K, 0T) was obtained for 10cm in length. The best Jc value of 4.3×105A/cm2(77.3K, 0T) was achieved for a short sample. Results of Jc-B measurement and tensile bending test indicated that the in-plane alignment led to excellent durability against external magnetic field and tensile strain.