Magnetic structure and anisotropy of [Co/Pd](5)/NiFe multilayers
2015 (English)In: Physical Review B. Condensed Matter and Materials Physics, ISSN 1098-0121, E-ISSN 1550-235X, Vol. 91, no 1, 014407- p.Article in journal (Refereed) Published
The magnetization behavior, magnetic anisotropy, and domain configurations of Co/Pd multilayers with perpendicular magnetic anisotropy capped with permalloy is investigated using magnetometry, magnetic force microscopy, and ferromagnetic resonance. The thickness of the Ni80Fe20 layer in [Co/Pd](5)/NiFe (t) was varied from t = 0 to 80 nm in order to study the interplay between the anisotropy and magnetization directions of Co/Pd and NiFe. By varying the thickness of the NiFe layer, the net anisotropy changes sign, but domains with plane- normal magnetization are present even for the thickest NiFe. Ferromagnetic resonance measurements show a decrease in damping with increasing NiFe thickness. The results demonstrate how the magnetic behavior of mixed- anisotropy thin films can be controlled.
Place, publisher, year, edition, pages
2015. Vol. 91, no 1, 014407- p.
Spin-Torque Oscillator, Perpendicular-Anisotropy, Reversal
IdentifiersURN: urn:nbn:se:kth:diva-160748DOI: 10.1103/PhysRevB.91.014407ISI: 000348395300003ScopusID: 2-s2.0-84921058863OAI: oai:DiVA.org:kth-160748DiVA: diva2:791801
QC 201503022015-03-022015-02-272015-03-02Bibliographically approved