Dimensionality crossover in magnetism: from domain walls (2D) to vortices (1D).
Dimensionality crossover is a classical topic in physics. Surprisingly, it has not been searched in micromagnetism, which deals with objects such as domain walls (2D) and vortices (1D). We predict by simulation a second-order transition between these two objects, with the wall length as the Landau parameter. This was confirmed experimentally based on micron-sized flux-closure dots.
Masseboeuf
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CEA, INAC-SP2M, LEMMA, 17 rue des Martyrs, 38054 Grenoble Cedex 9, France.
Fruchart
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O
Toussaint
J C
JC
Kritsikis
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E
Buda-Prejbeanu
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L
Cheynis
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F
Bayle-Guillemaud
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P
Marty
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