Modeling magnetic-field-induced domain wall propagation in modulated- diameter cylindrical nanowires

Abstract : Domain wall propagation in modulated-diameter cylindrical nanowires is a key phenomenon to be studied with a view to designing three-dimensional magnetic memory devices. This paper presents a theoretical study of transverse domain wall behavior under the influence of a magnetic field within a cylindrical nanowire with diameter modulations. In particular, domain wall pinning close to the diameter modulation was quantified, both numerically, using finite element micromagnetic simulations, and analytically. Qualitative analytical model for gently sloping modulations resulted in a simple scaling law which may be useful to guide nanowire design when analyzing experiments. It shows that the domain wall depinning field value is proportional to the modulation slope.
Type de document :
Pré-publication, Document de travail
2018
Liste complète des métadonnées

Littérature citée [1 références]  Voir  Masquer  Télécharger

https://hal.archives-ouvertes.fr/hal-01842158
Contributeur : Olivier Fruchart <>
Soumis le : mercredi 18 juillet 2018 - 07:09:07
Dernière modification le : vendredi 15 février 2019 - 22:23:07
Document(s) archivé(s) le : vendredi 19 octobre 2018 - 16:14:37

Fichier

Fernandez-Roldan_et_al_text_an...
Fichiers produits par l'(les) auteur(s)

Identifiants

  • HAL Id : hal-01842158, version 1
  • ARXIV : 1807.06253

Collections

Citation

J. A. Fernandez-Roldan, A. De Riz, B. Trapp, C. Thirion, J. -C. Toussaint, et al.. Modeling magnetic-field-induced domain wall propagation in modulated- diameter cylindrical nanowires. 2018. 〈hal-01842158〉

Partager

Métriques

Consultations de la notice

135

Téléchargements de fichiers

34