Electrical Transport Properties of (Bi_1.6Pb_0.4Sr₂Ca₂Cu₃O₁₀)/Ag Tapes with Different Nanosized MgO

Figure 4

𝐽_𝑐 of 𝑥=0 wt.%, 𝑥=0.10 wt.% of 20 nm MgO, and 𝑥=0.01 wt.% of 40 nm MgO added tapes under magnetic field parallel 𝐵_‖ and perpendicular 𝐵_⟂ to the surface of the tape at 77 K.

(a)

(b)