Magnetization states in coupled Ni[subscript 80]Fe[subscript 20] bi-ring nanostructures
Name
Ren-2010-Magnetization states in coupled.pdf
Size
1.17 MB
Format
Adobe PDF
Checksum (MD5)
7edbae07dbcb4474f2ef81fa619a376a
Author(s)
Ren, Yin
Jain, S.
Adeyeye, Adekunle Olusola
Ross, Caroline A.
Alternative Title
Magnetization states in coupled Ni80Fe20 bi-ring nanostructures
Date Issued
September 2010
Journal
New Journal of Physics
Publisher
Institute of Physics Publishing
Citation
Ren, Y et al. “Magnetization States in Coupled Ni[subscript 80]Fe[subscript 20] Bi-ring Nanostructures.” New Journal of Physics 12.9 (2010): 093003. Web.
Version
Final published version
Abstract
The effects of magnetostatic and exchange coupling between two circular Ni80Fe20 rings on the magnetization reversal process and spin configuration are investigated using focused magneto-optic Kerr measurements and magnetic force microscopy measurements. When the two rings are contiguous and exchange coupled, the reversal occurs via a three-stage process leading to a significant reduction of the vortex–onion switching fields when compared to magnetostatically coupled ring pairs or isolated rings of the same lateral dimensions. For exchange-coupled rings, the chirality of the vortices in the two rings is correlated. The experimental results are compared to 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
Creative Commons Attribution 3.0
Persistent DSpace Link
DOI of Published Version
https://doi.org/10.1088/1367-2630/12/9/093003
