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Sculpting microscopic magnetic flux landscapes in a BSCCO2212 vortex lens

D. Cole·S. J. Bending·S. Savelev·T. Tamegai·F. Nori
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Abstract

We demonstrate experimentally that the micromagnetic profile of the out-of-plane component of magnetic induction, B_z, in the crossing lattices regime of layered superconductors can be manipulated by varying the in-plane magnetic field, H_{||}. Moving Josephson vortices drag/push pancake vortex stacks, and the magnetic profile, B_z(x), can be controllably sculpted across the entire single crystal sample. Depending on the H-history and temperature we can increase or decrease the flux density at the center and near the edges of the crystal by as much as 40%, realising both 'convex' and 'concave' magnetic flux lenses. Our experimental results are well described by molecular dynamics simulations.

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D. Cole, S. J. Bending, S. Savelev, T. Tamegai, F. Nori. 2006-05-15. Sculpting microscopic magnetic flux landscapes in a BSCCO2212 vortex lens. https://arxiv.org/abs/cond-mat/0605375

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