Figure 3 | Scientific Reports

Figure 3

From: Competition between Superconductor – Ferromagnetic stray magnetic fields in YBa2Cu3O7−x films pierced with Co nano-rods

Figure 3The alternative text for this image may have been generated using AI.

Inhomogeneous SC magnetic field distribution. Out-of-plane magnetic field H z (colour scale) and current stream lines (blue lines, arrows indicate direction of current) induced in a thin straight superconducting film, of uniform thickness t, width W and constant critical current J c , with four symmetrical square antidots. For a uniform applied perpendicular positive magnetic field H a  = 0.3K c (being K c  = J c t) (a) after zero field cooled and (c) after applying a positive field to saturate the sample and then decreasing down to H a . (b) and (d) applying a transport current I = 0.7K c W in situation reached in (a) and (c), respectively. Thick black lines separate the regions with H z  < H a from H z  > H a .

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