Phys. Rev. B 77, 134518 (2008) [7 pages]

Guiding superconducting vortices with magnetic domain walls

Abstract

References

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V. Vlasko-Vlasov¹, U. Welp¹, G. Karapetrov¹, V. Novosad¹, D. Rosenmann¹, M. Iavarone¹, A. Belkin², and W.-K. Kwok¹
¹Materials Science Division, Argonne National Laboratory, Argonne, Illinois 60439, USA
²MSD ANL and Physics Division, Illinois Institute of Technology, Chicago, Illinois 60616, USA

Received 29 January 2008; published 29 April 2008

See accompanying Physics Focus

We demonstrate a unique prospect for inducing anisotropic vortex pinning and manipulating the directional motion of vortices by using the stripe domain patterns of a uniaxial magnetic film in the superconducting/ferromagnetic hybrid. Our observations can be described by a model, which considers interactions between magnetic charges of vortices and surface magnetic charges of domains resulting in the enhanced pinning of vortices on domain walls.

URL:

http://link.aps.org/doi/10.1103/PhysRevB.77.134518

DOI:

10.1103/PhysRevB.77.134518

PACS:

74.81.Bd, 74.70.−b, 74.25.−q

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Phys. Rev. B 77, 134518 (2008) [7 pages]

Guiding superconducting vortices with magnetic domain walls