Magnetic anisotropy of tetragonal FeCo/Pt (001) superlattices
2007 (English)In: Journal of Physics: Condensed Matter, ISSN 0953-8984, E-ISSN 1361-648X, Vol. 19, no 22, 226218- p.Article in journal (Refereed) Published
The magnetic properties of tetragonally strained Fe0.36Co0.64 alloys in the form of FeCo/Pt(001) superlattices have been investigated experimentally. The strain was controlled by varying the individual constituent thicknesses in the range 3–10 atomic monolayers (ML), resulting in lattice-parameter ratios c/a between 1.18 and 1.31. The sample with a c/a ratio of 1.18 has a preferred out-of-plane magnetization direction and magnetic stripe domains, revealed by MFM, while samples with higher c/a ratios prefer in-plane magnetization. The strain-induced contribution to anisotropy was found to have a dominating effect. Saturation-magnetization values up to 2.31 T at room temperature were measured.
Place, publisher, year, edition, pages
2007. Vol. 19, no 22, 226218- p.
Physical Sciences Engineering and Technology
IdentifiersURN: urn:nbn:se:uu:diva-95888DOI: 10.1088/0953-8984/19/22/226218ISI: 000246568500035OAI: oai:DiVA.org:uu-95888DiVA: diva2:170258