English   español  
Please use this identifier to cite or link to this item: http://hdl.handle.net/10261/219232
logo share SHARE logo core CORE   Add this article to your Mendeley library MendeleyBASE

Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL | DATACITE
Exportar a otros formatos:


Chiral asymmetry detected in a 2D array of permalloy square nanomagnets using circularly polarized x-ray resonant magnetic scattering

AuthorsDíaz, Javier; Gargiani, Pierluigi; Quirós, Carlos ; Redondo, C.; Morales, R.; Álvarez-Prado, L. M. ; Martín, José Ignacio ; Scholl, A.; Ferrer, S. ; Vélez, María ; Valvidares, S. M.
Issue Date2020
PublisherIOP Publishing
CitationNanotechnology 31(2): 025702 (2020)
AbstractThe sensitivity of circularly polarized x-ray resonant magnetic scattering (CXRMS) to chiral asymmetry has been demonstrated. The study was performed on a 2D array of Permalloy (Py) square nanomagnets of 700 nm lateral size arranged in a chess pattern, in a square lattice of 1000 nm lattice parameter. Previous x-ray magnetic circular dichroism photoemission electron microscopy (XMCD-PEEM) images on this sample showed the formation of vortices at remanence and a preference in their chiral state. The magnetic hysteresis loops of the array along the diagonal axis of the squares indicate a non-negligible and anisotropic interaction between vortices. The intensity of the magnetic scattering using circularly polarized light along one of the diagonal axes of the square magnets becomes asymmetric in intensity in the direction transversal to the incident plane at fields where the vortex states are formed. The asymmetry sign is inverted when the direction of the applied magnetic field is inverted. The result is the expected in the presence of an unbalanced chiral distribution. The effect is observed by CXRMS due to the interference between the charge scattering and the magnetic scattering.
Publisher version (URL)https://doi.org/10.1088/1361-6528/ab46d7
Appears in Collections:(CINN) Artículos
Files in This Item:
File Description SizeFormat 
chiralscatter.pdf781,42 kBAdobe PDFThumbnail
Show full item record
Review this work

WARNING: Items in Digital.CSIC are protected by copyright, with all rights reserved, unless otherwise indicated.