Symmetry Violation in a Superconducting Film with a Square Array of Ferromagnetic Dots

Details Symmetry Violation in a Superconducting Film with a Square Array of Ferromagnetic Dots Symmetry Violation in a Superconducting Film with a Square Array of Ferromagnetic Dots

2002-11-06

arxiv.org/abs/cond-mat/0211117v1

Physica C 391, 140 (2003)

Physics

Condensed Matter

Superconductivity

6 pages, 3 figures

Scientific paper

10.1016/S0921-4534(03)00887-6

We study the equilibrium state of a superconducting film covered with a regular square array of perpendicularly magnetized magnetic dots. The dots induce vortices in the film directly under them and antivortices between the dots. We show that the symmetry of the dot array is spontaneously violated by the vortices. The positions of the vortices and the antivortices depend on the magnetization and the size of the dots.

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