Effects of Interlayer Coupling in Elongated Ni80Fe20/Au/Co Nanorings
Name
Ren-2010-Effects of Interlayer Coupling in Elongated Ni80Fe20AuCo Nanorings.pdf
Size
567.5 KB
Format
Adobe PDF
Checksum (MD5)
810d0a0958453eb3259991b4e57fd85c
Author(s)
Ren, Yang
Adeyeye, Adekunle Olusola
Nam, C. H.
Ross, Caroline A.
Alternative Title
Effects of interlayer coupling in elongated Ni [subscript 80] Fe [subscript 20]/Au/Co nanorings
Date Issued
May 2010
Journal
IEEE transactions on magnetics
Publisher
Institute of Electrical and Electronics Engineers
Citation
Adeyeye, A.O., C. Nam, and C.A. Ross, with Yang Ren. “Effects of Interlayer Coupling in Elongated \hbox {Ni}_{80}\hbox {Fe}_{20}/\hbox {Au/Co} Nanorings.” Magnetics, IEEE Transactions On 46.6 (2010) : 1906-1909. Copyright © 2010, IEEE
Version
Final published version
Abstract
We describe the magnetization reversal processes in multilayer elongated Ni80 [subscript 80] Fe20 [subscript 20](10 nm)/Au(t = 0 to 20 nm)/ Co(20 nm)/Si(001) nanorings. For a field applied in-plane along the long axis, the hysteresis loops display a two-step switching for both t = 0 nm and 2 nm, and a three-step switching for t = 10 nm and 20 nm. Onion-to-vortex and vortex-to-reverse onion state transitions occur for a thin Au spacer due to strong exchange coupling between the layers. For a thick Au spacer layer, the Ni80 [subscript 80] Fe20 [subscript 20] layer switches first, then a two-step reversal of the Co, correlated with domain motion in the Ni80 [subscript 80] Fe20 [subscript 20], occurs without the formation of vortex states as a result of magnetostatic interactions. There is a good agreement between the experimental results and micromagnetic simulations.
MIT Department
Massachusetts Institute of Technology. Department of Materials Science and Engineering
Singapore-MIT Alliance in Research and Technology (SMART)
Terms of Use
Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.
Persistent DSpace Link
DOI of Published Version
https://doi.org/10.1109/tmag.2009.2038799
