Off-specular polarized neutron reflectometry from periodic arrays of lithographically structured Co dots

Par Conseil national de recherches du Canada

DOI	Trouver le DOI : https://doi.org/10.1021/la026625n
Auteur	Rechercher : Fritzsche, Helmut; Rechercher : Van Bael, Margriet J.; Rechercher : Temst, K.
Format	Texte, Article
Résumé	We studied the off-specular intensity in polarized neutron reflectivity from regular arrays of circular and rectangular Co dots with sizes in the micrometer range. The dots were lithographically prepared and placed on a square lattice with a period of 10 m, the rectangular dots having an aspect ratio of 4:1. In both cases, we observed enhanced intensity at particular angles off the specular condition. The positions of these satellites are correlated to the lateral periodicity of the ferromagnetic dots. The magnetic information could be revealed by measuring the off-specular intensity as a function of the magnetic field applied in-plane parallel to the rows of the dots. The magnetization reversal process could be analyzed by separating the spin-flip and non-spin-flip contributions to the off-specular signal. The measured spin-flip intensities clearly prove that for both samples the magnetization reversal is dominated by domain wall movement and not by a uniform rotation of single-domain particles.
Date de publication	2003-09-16
Maison d’édition	American Chemical Society
Dans	Langmuir 19, nº 19 : 7789–7793.
Publications évaluées par des pairs	Oui
Publication du CNRC	Cette publication n’est pas du CNRC Ce sont des publications qui ont été rédigées par un auteur du CNRC, mais avant que celui-ci soit employé du CNRC.
Numéro NPARC	12337999
Exporter la notice	Exporter en format RIS
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Identificateur de l’enregistrement	1850348a-3d03-4a25-90e5-9b8b4529c456
Enregistrement créé	2009-09-10
Enregistrement modifié	2020-04-02

Date de modification :: 2024-06-30