[Co/Pd](4)-Co-Pd-NiFe spring magnets with highly tunable and uniform magnetization tilt angles
2012 (English)In: Journal of Magnetism and Magnetic Materials, ISSN 0304-8853, Vol. 324, no 22, 3929-3932 p.Article in journal (Refereed) Published
By varying the Pd thickness (t(Pd)) from 0 to 8 nm in [Co/Pd](4)/Co/Pd(t(Pd))/NiFe exchange springs, we demonstrate (i) continuous tailoring of the exchange coupling between a [Co/Pd](4)/Co layer with perpendicular anisotropy, and a NiFe layer with an in-plane easy axis, (ii) tuning of the NiFe out-of-plane magnetization angle from 20 degrees to 80 degrees, and(iii) an up to two-fold increase in the NiFe damping. The partial decoupling also results in a highly uniform NiFe magnetization. These properties make [Co/Pd](4)/Co/Pd(t(Pd))/NiFe spring magnets ideal candidates for use as tilted polarizers, by combining stable and well-defined spin directions of its carriers with a high degree of angular freedom.
Place, publisher, year, edition, pages
2012. Vol. 324, no 22, 3929-3932 p.
Exchange spring, Tilted spin polarizer, Competing magnetic anisotropy
Other Physics Topics
IdentifiersURN: urn:nbn:se:kth:diva-103122DOI: 10.1016/j.jmmm.2012.06.043ISI: 000307299700056ScopusID: 2-s2.0-84864766371OAI: oai:DiVA.org:kth-103122DiVA: diva2:559112
FunderSwedish Research CouncilKnut and Alice Wallenberg Foundation
QC 201210082012-10-082012-10-042012-10-08Bibliographically approved