uu.seUppsala University Publications
Change search
ReferencesLink to record
Permanent link

Direct link
Resonant x-ray diffraction revealing chemical disorder in sputtered L1(0) FeNi on Si(001)
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Materials Physics.
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Materials Physics.
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Materials Physics.
ABB AB, Corp Res, Power Devices, SE-72178 Vasteras, Sweden..
Show others and affiliations
2016 (English)In: Journal of Physics: Condensed Matter, ISSN 0953-8984, E-ISSN 1361-648X, Vol. 28, no 40, 406002Article in journal (Refereed) Published
Abstract [en]

In the search for new rare earth free permanent magnetic materials, FeNi with a L1(0) structure is a possible candidate. We have synthesized the phase in the thin film form by sputtering onto HF-etched Si(001) substrates. Monatomic layers of Fe and Ni were alternately deposited on a Cu buffer layer, all of which grew epitaxially on the Si substrates. A good crystal structure and epitaxial relationship was confirmed by in-house x-ray diffraction (XRD). The chemical order, which to some part is the origin of an uniaxial magnetic anisotropy, was measured by resonant XRD. The 001 superlattice reflection was split in two symmetrically spaced peaks due to a composition modulation of the Fe and Ni layers. Furthermore the influence of roughness induced chemical anti-phase domains on the RXRD pattern is exemplified. A smaller than expected magnetic uniaxial anisotropy energy was obtained, which is partly due to the composition modulations, but the major reason is concluded to be the Cu buffer surface roughness.

Place, publisher, year, edition, pages
2016. Vol. 28, no 40, 406002
Keyword [en]
resonant x-ray diffraction, FeNi, L1(0), magnetron sputtering, chemical order, magnetic anisotropy, magnetic properties of thin films
National Category
Condensed Matter Physics
Identifiers
URN: urn:nbn:se:uu:diva-305311DOI: 10.1088/0953-8984/28/40/406002ISI: 000383804500014PubMedID: 27518923OAI: oai:DiVA.org:uu-305311DiVA: diva2:1037762
Available from: 2016-10-18 Created: 2016-10-14 Last updated: 2016-10-26Bibliographically approved

Open Access in DiVA

The full text will be freely available from 2017-08-13 21:35
Available from 2017-08-13 21:35

Other links

Publisher's full textPubMed

Search in DiVA

By author/editor
Frisk, AndreasLindgren, BengtPappas, Spiridon D.Andersson, Gabriella
By organisation
Materials Physics
In the same journal
Journal of Physics: Condensed Matter
Condensed Matter Physics

Search outside of DiVA

GoogleGoogle Scholar

Altmetric score

Total: 87 hits
ReferencesLink to record
Permanent link

Direct link