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EPL Association, European Physical Society Letters, 6(76), p. 1151-1157, 2006

DOI: 10.1209/epl/i2006-10411-3

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Manipulation of magnetic-flux landscapes in superconducting Bi 2 Sr 2 CaCu 2 O 8 + δ crystals

Journal article published in 2006 by D. Cole, S. J. Bending, S. Savel'ev ORCID, T. Tamegai, Franco Nori
This paper was not found in any repository, but could be made available legally by the author.
This paper was not found in any repository, but could be made available legally by the author.

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Abstract

We demonstrate experimentally that the micromagnetic profile of the out-of-plane component of magnetic induction of layered superconductors, Bz, can be manipulated by varying the in-plane magnetic field, H???. Moving Josephson vortices, confined between layers, drag pancake vortex stacks carrying out-of-plane flux, and the magnetic profile, Bz(x), can be controllably shaped across the entire sample. Depending on the magnetic history and temperature we can increase or decrease the out-of-plane 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.