Neutron Reflectometry in Superlattices with Strongly Absorbing Rare-Earth Metals (Gd, Dy)

N. О. Antropov; Антропов Н. О.; Е. А. Kravtsov; Кравцов Е. А.

doi:10.31857/S1028096023070038

Neutron Reflectometry in Superlattices with Strongly Absorbing Rare-Earth Metals (Gd, Dy)

Authors: Antropov N.О.¹, Kravtsov Е.А.¹^,2
Affiliations:
1. Institute of Metal Physics
2. Ural Federal University
Issue: No 8 (2023)
Pages: 11-15
Section: Articles
URL: https://journals.rcsi.science/1028-0960/article/view/137791
DOI: https://doi.org/10.31857/S1028096023070038
EDN: https://elibrary.ru/TBULYL
ID: 137791

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Abstract
About the authors
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Abstract

Polarized neutron reflectometry was used to study Dy/Gd superlattices with different ratios of Dy and Gd layer thicknesses: 1 : 1, 2 : 1, 3 : 1. It has been experimentally shown that the formation of helical magnetic ordering in Dy layers with a period incommensurate with the period of the superlattice appears as a magnetic superlattice reflection, which is forbidden for structural reasons at a ratio of the thicknesses of the Dy and Gd layers 1 : 1. Otherwise, the formation of helical magnetic ordering has little effect on the shape of the neutron reflectometry curves. Thus, the optimization of the structure of rare-earth superlattices for the neutron reflectometry experiment makes it possible to detect helical magnetic ordering in superlattices with a period incommensurate with the structural superlattice ordering.

Keywords

magnetic multilayers, helical magnetic ordering, polarized neutron reflectometry, rare-earth metals.

About the authors

N. О. Antropov

Institute of Metal Physics

Author for correspondence.
Email: nikolayantropovekb@gmail.com
Russia, 620990, Ekaterinburg

Е. А. Kravtsov

Institute of Metal Physics; Ural Federal University

Author for correspondence.
Email: kravtsov@imp.uran.ru
Russia, 620990, Ekaterinburg; Russia, 620002, Ekaterinburg

References

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