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Issue 21, 2020
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Effect of the interplay between layering sequence permutations and thickness on the magnetic features of Fe/Ni/Gd hetero-films

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Abstract

The effect of the interplay between layering sequence permutations and film thickness on the temperature-dependent magnetization and spin structure of Fe/Ni/Gd hetero-films (sizes: 10 nm × 10 nm × d nm and 20 nm × 20 nm × d nm, where d is the film thickness and with all possible layer sequence permutations) is investigated in the framework of an atomistic spin dynamics formalism. As the main conclusion of our work, for d = 2 and 4 nm, layering sequence permutations do not affect the evolution of the mean temperature-dependent magnetization of hetero-films. Nonetheless, dramatic magnetic modulations appear for d = 6 nm. More specifically, a Gd film sandwiched between Fe and Ni films (FeGdNi hetero-film) exhibits a depressed mean temperature-dependent magnetization in the temperature range of 150 K to 700 K. In contrast, both FeNiGd and NiFeGd hetero-films show a more or less similar magnetization evolution.

Graphical abstract: Effect of the interplay between layering sequence permutations and thickness on the magnetic features of Fe/Ni/Gd hetero-films

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Article information


Submitted
30 Mar 2020
Accepted
12 May 2020
First published
22 May 2020

Phys. Chem. Chem. Phys., 2020,22, 12082-12091
Article type
Paper

Effect of the interplay between layering sequence permutations and thickness on the magnetic features of Fe/Ni/Gd hetero-films

J. H. Mokkath, Phys. Chem. Chem. Phys., 2020, 22, 12082
DOI: 10.1039/D0CP01712D

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