English   español  
Please use this identifier to cite or link to this item: http://hdl.handle.net/10261/11580
Share/Impact:
Statistics
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
Exportar a otros formatos:

Title

Growth and magnetic characterization of Co nanoparticles obtained by femtosecond pulsed laser deposition

AuthorsCebollada, Alfonso ; García-Martín, José Miguel ; Clavero Pérez, César ; Balcells Argemi, Lluis; Estradé, J.; Arbiol, J.; Peiró, F.; Smith, C.; Clarke, Roy; Martínez Rodríguez, Luis Javier ; Huttel, Yves ; Román, Eduardo H.; Telling, N. D.; Van der Laan, G.
KeywordsCobalt
magnetic circular dichroism
Magnetic domains
Magnetic force microscopy
Nanostructured materials
Pulsed laser deposition
SQUIDs
Surface structure
Issue Date12-Jan-2009
PublisherAmerican Physical Society
CitationPhysical Review B.79.014414
AbstractWe present a detailed study on the morphology and magnetic properties of Co nanostructures deposited onto oxidized Si substrates by femtosecond pulsed laser deposition. Generally, Co disks of nanometric dimensions are obtained just above the ablation threshold, with a size distribution characterized by an increasingly larger number of disks as their size diminishes, and with a maximum disk size that depends on the laser power density. In Au/Co/Au structures, in-plane magnetic anisotropy is observed in all cases, with no indication of superparamagnetism regardless of the amount of material or the laser power density. Magnetic force microscopy observations show coexistence of single-domain and vortex states for the magnetic domain structure of the disks. Superconducting quantum interference device magnetometry and x-ray magnetic circular dichroism measurements point to saturation magnetization values lower than the bulk, probably due to partial oxidation of the Co resulting from incomplete coverage by the Au capping layer.
Publisher version (URL)http://dx.doi.org/10.1103/PhysRevB.79.014414
URIhttp://hdl.handle.net/10261/11580
DOI10.1103/PhysRevB.79.014414
ISSN1098-0121
Appears in Collections:(IMN-CNM) Artículos
Files in This Item:
File Description SizeFormat 
PhysRevB_79_014414_2009.pdf922,15 kBAdobe PDFThumbnail
View/Open
Show full item record
Review this work
 

Related articles:


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