Journal Article

IMPULSE-2023-00168

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Neutron Reflectometry in Superlattices with Strongly Absorbing Rare-Earth Metals (Gd, Dy)

Antropov, N. O. (Corresponding author) ; Kravtsov, E. A. (Corresponding author)

2023
Springer Science+Business Media Berlin

Please use a persistent id in citations: doi:10.1134/S1027451023040031

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

Keyword(s): Magnetic Materials (1st) ; Magnetism (2nd)

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Contributing Institute(s):

1. Users (Users)
2. NREX (NREX)

Experiment(s):

1. NREX: Neutron reflectometer with X-ray option (NL1)

Appears in the scientific report 2023

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Database coverage:
Clarivate Analytics Master Journal List ; DEAL Springer ; DEAL Springer ; Emerging Sources Citation Index ; IF < 5 ; JCR ; SCOPUS ; Web of Science Core Collection

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