NOTICE: Due to a lapse in annual appropriations, most of this website is not being updated. Learn more.

Form submissions will still be accepted but will not receive responses at this time. Sections of this site for programs using non-appropriated funds (such as NVLAP) or those that are excepted from the shutdown (such as CHIPS and NVD) will continue to be updated.

U.S. flag

An official website of the United States government

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

PUBLICATIONS

Ferromagnetic resonance measurements of (Co/Ni/Co/Pt) multilayers with perpendicular magnetic anisotropy

Published

Author(s)

R R Sbiaa, Justin Shaw, Hans Nembach, M Al Bahri, M Ranjbar, J. ?kerman, S. N. Piramanayagam

Abstract

Multilayers of [Co/Ni(t)/Co/Pt]×8 with varying Ni thickness were investigated for possible use as a free layer in magnetic tunnel junctions and spintronics devices. The thickness t of the Ni sub-layer was varied from 0.3 nm to 0.9 nm and the resulting magnetic properties were compared with (Co/Ni) and (Co/Pt) multilayers. As determined from magnetic force microscopy, magnetometry and ferromagnetic resonance measurements, all multilayers exhibited perpendicular magnetic anisotropy. Compared with (Co/Pt) multilayers, the sample with t of 0.9 nm showed almost the same anisotropy field of μ0Hk = 1.15 T but the damping constant was 40% lower. These characteristics make these multilayers attractive for spin torque based magnetoresistive devices with perpendicular anisotropy.
Citation
Journal of Physics D-Applied Physics
Volume
49
Pub Type
Journals

Download Paper

https://doi.org/10.1088/0022-3727/49/42/425002
Local Download

Keywords

Ferromagnetic resonance, perpendicular anisotropy, magnetic damping, magnetic force microscopy, magnetic tunnel junctions
Materials characterization, Magnetoelectronics and Magnetics

Citation

R Sbiaa, R. , Shaw, J. , Nembach, H. , Al Bahri, M. , Ranjbar, M. , ?kerman, J. and Piramanayagam, S. (2016), Ferromagnetic resonance measurements of (Co/Ni/Co/Pt) multilayers with perpendicular magnetic anisotropy, Journal of Physics D-Applied Physics, [online], https://doi.org/10.1088/0022-3727/49/42/425002, https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=921059 (Accessed October 27, 2025)

Issues

If you have any questions about this publication or are having problems accessing it, please contact [email protected].

Created August 19, 2016, Updated October 12, 2021
Was this page helpful?