English   español  
Please use this identifier to cite or link to this item: http://hdl.handle.net/10261/66037
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

Determination of the magnetostrictive atomic environments in FeCoB alloys

AuthorsDíaz, Javier; Quirós, Carlos ; Álvarez-Prado, L. M.
Issue Date2012
PublisherAmerican Physical Society
CitationPhysical Review B 85(13): 134437 (2012)
AbstractThe atomic environments of Fe and Co involved in the magnetostriction effect in FeCoB alloys have been identified by differential extended x-ray fine structure (DiffEXAFS) spectroscopy. The study, done in amorphous and polycrystalline FeCoB films, demonstrates that the alloys are heterogeneous and that boron plays a crucial role in the origin of their magnetostrictive properties. The analysis of DiffEXAFS in the polycrystalline and amorphous alloys indicates that boron activates magnetostriction when entering as an impurity into octahedral interstitial sites of the Fe bcc lattice, causing its tetragonal distortion. Magnetostriction would be explained then by the relative change in volume when the tetragonal axis of the site is reoriented under an externally applied magnetic field. The experiment demonstrates the extreme sensitivity of DiffEXAFS to characterize magnetostrictive environments that are undetectable in their related EXAFS spectra. © 2012 American Physical Society.
DescriptionPACS number(s): 61.05.cj, 61.43.Dq, 75.80.+q, 75.50.Kj.-- et al.
Publisher version (URL)http://dx.doi.org/10.1103/PhysRevB.85.134437
URIhttp://hdl.handle.net/10261/66037
DOI10.1103/PhysRevB.85.134437
Identifiersdoi: 10.1103/PhysRevB.85.134437
issn: 1098-0121
e-issn: 1550-235X
Appears in Collections:(CINN) Artículos
Files in This Item:
File Description SizeFormat 
Determination of the.pdf967,25 kBAdobe PDFThumbnail
View/Open
Show full item record
 

Related articles:


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