Stripe width and non-local domain walls in the two-dimensional Dipolar Frustrated Ising Ferromagnet

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dc.creatorVindigni, Alessandro
dc.creatorSaratz, Niculin
dc.creatorPortmann, Oliver
dc.creatorPescia, Danilo
dc.creatorPoliti, Paolo
dc.date2007-07-11
dc.date2008-02-29
dc.date.accessioned2026-07-07T09:28:59Z
dc.date.available2026-07-07T09:28:59Z
dc.descriptionWe describe a novel type of magnetic domain wall which, in contrast to Bloch or Neel walls, is non-localized and, in a certain temperature range, non-monotonic. The wall appears as the mean-field solution of the two-dimensional ferromagnetic Ising model frustrated by the long-ranged dipolar interaction. We provide experimental evidence of this wall delocalization in the stripe-domain phase of perpendicularly magnetized ultrathin magnetic films. In agreement with experimental results, we find that the stripe width decreases with increasing temperature and approaches a finite value at the Curie-temperature following a power law. The same kind of wall and a similar temperature dependence of the stripe width is expected in the mean-field approximation of the two-dimensional Coulomb frustrated Ising ferromagnet.
dc.description5 pages, the manuscript has been rewritten in several parts and figures have been modified. To be published in Physical Review B
dc.identifierhttps://arxiv.org/abs/0707.1582
dc.identifierhttp://arxiv.org/abs/0707.1582
dc.identifierPhys. Rev. B 77, 092414 (2008)
dc.identifierdoi:10.1103/PhysRevB.77.092414
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/157627
dc.subjectStatistical Mechanics
dc.subjectMaterials Science
dc.titleStripe width and non-local domain walls in the two-dimensional Dipolar Frustrated Ising Ferromagnet
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