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Multiscale micromagnetism of Co-Pd multilayers

Manchanda, P., Skomski, R., Sahota, P.K., Franchin, M., Fangohr, H. and Kashyap, A. (2012) Multiscale micromagnetism of Co-Pd multilayers Journal of Applied Physics, 111, (7), 07C724-[3pp].

Record type: Article


The interplay between atomic and micromagnetic effects in Co-Pd multilayers is investigated by model calculations and numerical simulations. By minimizing the total exchange energy, an effective exchange stiffness is obtained. The stiffness depends on the superlattice periodicity, on the wave vector of the magnetization variation, and on the exchange coupling through the Pd, which is calculated from first principles (J?=?7.66 mJ/m2). The net magnetic anisotropy, Keff?=?0.71 MJ/m3, which is also obtained from first principles, contains two parts, namely the Pd-Co interface anisotropy Kif?=?0.45 mJ/m2 and the bulk anisotropy KCo?=??0.28 MJ/m3 of the strained fcc Co. For vertical and lateral magnetization variations, we find domain-wall thicknesses of 5.1 nm and 6.9 nm and domain-wall energies of 5.94 mJ/m2 and 6.66 mJ/m2, respectively.

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Submitted date: 23 September 2011
Published date: 12 March 2012
Keywords: ab initio calculations, cobalt, magnetic anisotropy, magnetic domain walls, magnetic multilayers, micromagnetics, palladium
Organisations: Computational Engineering & Design Group


Local EPrints ID: 335832
ISSN: 0021-8979
PURE UUID: 51692733-d30d-43ce-90f6-13a1d25b7324

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Date deposited: 13 Mar 2012 14:14
Last modified: 11 Oct 2017 13:39

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Author: P. Manchanda
Author: R. Skomski
Author: P.K. Sahota
Author: M. Franchin
Author: H. Fangohr
Author: A. Kashyap

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