Kirby, B.
, , P.
, , B.
, , J.
and Liu, K.
(2015),
Effective Anisotropy Gradient in Pressure Graded [Co/Pd] Multilayers, Journal of Applied Physics, [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=915992
(Accessed September 18, 2024)
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Effective Anisotropy Gradient in Pressure Graded [Co/Pd] Multilayers
Published
Author(s)
, P. K. Greene, , J. E. Davis, Kai Liu
Abstract
A vertically graded anisotropy profile has been proposed as an optimized balance of low coercivity and thermal stability for multilayers used in magnetic media. Deposition pressure is known to have a profound effect on the magnetic reversal properties of Co/Pd multilayers, making it an attractive control parameter for achieving an anisotropy gradient behavior of "pressure-graded" Co/Pd, and observed pronounced gradients in the saturation magnetization and in the rate at which magnetization changes with field (the effective anisotropy). While the anisotropy gradient likely arises from a combination of factors intrinsic to deposition pressure, micromagetic simulations indicate that the observed saturation magnetization gradient alone has a major effect on the resulting coercivity.Citation
Journal of Applied Physics
Volume
117
Issue
6
Pub Type
Journals
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Created February 14, 2015, Updated February 19, 2017