Magnetic structure and anisotropy of [Co/Pd][subscript 5]/NiFe multilayers

Author(s)
Guo, Feng; Nguyen, T. N. Anh; Mohseni, Majid S.; Chung, Sunjae; Fang, Yeyu; ... Show more
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Abstract
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][subscript 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.
Date issued
2015-01
URI
http://hdl.handle.net/1721.1/112197
Department
Massachusetts Institute of Technology. Department of Materials Science and Engineering
Journal
Physical Review B
Publisher
American Physical Society (APS)
Citation
Tryputen, Larysa et al. “Magnetic structure and anisotropy of [Co/Pd][subscript 5]/NiFe multilayers.” Physical Review B 91, 1 (January 2015) © 2015 American Physical Society
Version: Final published version
ISSN
2469-9950
2469-9969
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