On a model of magnetization switching driven by a spin current: a multiscale approach - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue Communications in Mathematical Sciences Année : 2015

On a model of magnetization switching driven by a spin current: a multiscale approach

Résumé

We study a model of magnetization switching driven by a spin current: the magnetization reversal can be induced without applying an external magnetic fi eld. We first write our one dimensional model in an adimensionalized form, using a small parameter $\epsilon$. We then explain the various time and space scales involved in the studied phenomena. Taking into account these scales, we fi rst construct an appropriate numerical scheme, that allows us to recover numerically various results of physical experiments. We then perform a formal asymptotic study as $\epsilon$ tends to 0, using a multiscale approach and asymptotic expansions. We thus obtain approximate limit models that we compare with the original model via numerical simulations.
Fichier principal
Vignette du fichier
article_spintronique_v2.pdf (1.17 Mo) Télécharger le fichier
Origine : Fichiers produits par l'(les) auteur(s)
Loading...

Dates et versions

hal-00987101 , version 1 (05-05-2014)
hal-00987101 , version 2 (19-12-2014)

Identifiants

Citer

Naoufel Ben Abdallah, Elise Fouassier, Clément Jourdana, David Sanchez. On a model of magnetization switching driven by a spin current: a multiscale approach. Communications in Mathematical Sciences, 2015, 13 (7), pp.1875-1904. ⟨10.4310/CMS.2015.v13.n7.a10⟩. ⟨hal-00987101v2⟩
838 Consultations
393 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More