Magnetic Structure of Dy–Co Superlattice near the Compensation Temperature

M. V. Makarova; Макарова М. В.; E. A. Kravtsov; Кравцов Е. А.; V. V. Proglyado; Проглядо В. В.; I. A. Subbotin; Субботин И. А.; E. M. Pashaev; Пашаев Э. М.; D. Kholin; Холин Д.; Yu. N. Khaydukov; Хайдуков Ю. Н.

doi:10.31857/S102809602304012X

Magnetic Structure of Dy–Co Superlattice near the Compensation Temperature

Авторлар: Makarova M.¹^,2, Kravtsov E.¹^,2, Proglyado V.¹, Subbotin I.³, Pashaev E.³, Kholin D.⁴, Khaydukov Y.⁵^,6
Мекемелер:
1. Institute of Metal Physics, Ural Branch, Russian Academy of Sciences
2. Ural Federal University
3. National Research Center “Kurchatov Institute”
4. P.L. Kapitza Institute for Physical Problems RAS
5. Max Planck Institute for Solid State Physics
6. Skobeltsyn Institute of Nuclear Physics, Moscow State University
Шығарылым: № 4 (2023)
Беттер: 50-54
Бөлім: Articles
URL: https://journals.rcsi.science/1028-0960/article/view/137737
DOI: https://doi.org/10.31857/S102809602304012X
EDN: https://elibrary.ru/JOJKQF
ID: 137737

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Аннотация
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Әдебиет тізімі
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Аннотация

The magnetic ordering of the multilayer structure of Dy–Co was studied using complementary methods of polarized neutron reflectometry and Kerr magnetometry. It was found that during the deposition of a layered structure, the Dy and Co layers are partially mixed with the formation of the DyCo₂ intermetallic compound. The profiles of the magnetization of individual layers at the atomic level were determined. It was managed to describe a noncollinear magnetic structure of the layers near the compensation point using the neutron reflectometry data. The triple hysteresis loops observed in the same temperature range most likely indicated the non-identity of the outer and inner superlattice layers. The inhomogeneity profile of the DyCo₂ layer magnetization distribution can be explained by the strong exchange interaction at the interfaces. In a small applied magnetic field, the interlayer exchange interaction dominates over by the Zeeman energy. The antuparallel ordering of the magnetic moments of the Co and DyCo₂ layers was distorted by the magnetic field; as a result, the angle between the magnetization vectors was maximum at the Co/DyCo₂ interfaces only.

Негізгі сөздер

metal magnetic superlattices, rare-earth metals, the polarizability distribution profile perpendicular magnetic anisotropy, polarized neutron reflectometry.

Әдебиет тізімі

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