Dimensionality cross-over in magnetism: from domain walls (2D) to vortices (1D)

Dimensionality cross-over 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 conrmed experimentally based on micron-sized ux-closure dots.

Domaines

Science des matériaux [cond-mat.mtrl-sci]

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wall-versus-vortex-submit2.pdf (311.1 Ko)

DW-vortex-live.avi (1012 Ko)

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Olivier Fruchart : Connectez-vous pour contacter le contributeur

https://hal.science/hal-00416725

Soumis le : mercredi 17 mars 2010-23:41:37

Dernière modification le : lundi 9 décembre 2024-03:36:14

Archivage à long terme le : jeudi 23 septembre 2010-12:13:30

Dates et versions

hal-00416725 , version 1 (15-09-2009)

hal-00416725 , version 2 (17-03-2010)

Identifiants

HAL Id : hal-00416725 , version 2
ARXIV : 0909.2952
DOI : 10.1103/PhysRevLett.104.127204

Citer

Aurélien Masseboeuf, Olivier Fruchart, Jean-Christophe Toussaint, Evaggelos Kritsikis, L. D. Buda-Prejbeanu, et al.. Dimensionality cross-over in magnetism: from domain walls (2D) to vortices (1D). Physical Review Letters, 2010, 104 (12), pp.127204. ⟨10.1103/PhysRevLett.104.127204⟩. ⟨hal-00416725v2⟩

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