Shaw, J.
, Rippard, W.
, Russek, S.
, Reith, T.
and Falco, C.
(2007),
Origins of switching field distributions in perpendicular magnetic nanodot arrays, Journal of Applied Physics, [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=32427
(Accessed November 21, 2024)
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Origins of switching field distributions in perpendicular magnetic nanodot arrays
Published
Author(s)
, , , Tim Reith, Charles M. Falco
Abstract
We studied the reversal properties of perpendicularly magnetized Co/Pd nanodots from 100 to 50 nm in diameter fabricated using electron beam lithography. Polycrystalline Co/Pd multilayers show considerable differences in the switching field distribution (SFD) depending on the seed layer used. With a Ta seed layer, we reduced the SFD to approximately 5% of the average switching field. To rule out effects of grain boundaries, we also fabricated nanodot arrays from epitaxial Co/Pd superlattices. Although significant improvement in SFDs are obtained using epitaxial superlattices, our results indicate that grain boundary variation within nanodots is not the primary origin of SFD broadening that occurs with nanopatterning.Citation
Journal of Applied Physics
Volume
101
Pub Type
Journals
Download Paper
Keywords
magnetism, multilayer, nanodots, nanostructure, patterned media
Citation
Issues
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Created January 18, 2007, Updated October 12, 2021