First-order reversal curve analysis of graded anisotropy FePtCu films
2010 (English)In: Applied Physics Letters, ISSN 0003-6951, E-ISSN 1077-3118, Vol. 97, no 20, 202501- p.Article in journal (Refereed) Published
The reversal mechanisms of graded anisotropy FePtCu films have been investigated by alternating gradient magnetometer (AGM) and magneto-optical Kerr effect (MOKE) measurements with first-order reversal curve (FORC) techniques. The AGM-FORC analysis, which clearly shows the presence of soft and hard components, is unable to resolve how these phases are distributed throughout the film thickness. MOKE-FORC measurements, which preferentially probe the surface of the film, reveal that the soft components are indeed located toward the top surface. Combining AGM-FORC with the inherent surface sensitivity of MOKE-FORC analysis allows for a comprehensive analysis of heterogeneous systems such as graded materials.
Place, publisher, year, edition, pages
2010. Vol. 97, no 20, 202501- p.
IdentifiersURN: urn:nbn:se:kth:diva-27960DOI: 10.1063/1.3515907ISI: 000284545200034ScopusID: 2-s2.0-78649234796OAI: oai:DiVA.org:kth-27960DiVA: diva2:383055
FunderSwedish Research CouncilKnut and Alice Wallenberg Foundation
QC 201101042011-01-042011-01-032011-05-25Bibliographically approved