title: Dimensionality crossover in magnetism: from domain walls (2D) to vortices (1D).
abstract: 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.
authors.affiliation: CEA, INAC-SP2M, LEMMA, 17 rue des Martyrs, 38054 Grenoble Cedex 9, France.
authors.forename: A
authors.initials: A
authors.lastname: Masseboeuf
authors.forename: O
authors.initials: O
authors.lastname: Fruchart
authors.forename: J C
authors.initials: JC
authors.lastname: Toussaint
authors.forename: E
authors.initials: E
authors.lastname: Kritsikis
authors.forename: L
authors.initials: L
authors.lastname: Buda-Prejbeanu
authors.forename: F
authors.initials: F
authors.lastname: Cheynis
authors.forename: P
authors.initials: P
authors.lastname: Bayle-Guillemaud
authors.forename: A
authors.initials: A
authors.lastname: Marty