Journal of Alloys and Compounds2022，Vol.9268.DOI:10.1016/j.jallcom.2022.166956

Manipulation of micromagnetic structure of thin Co/Pt multilayer films by precise variation of Co and Pt thicknesses

Vikhrova O.V. Kudrin A.V. Kalentyeva I.L. Ved M.V. Trushin V.N. Temiryazeva M.P. Temiryazev A.G. Sadovnikov A.V. Orlova A.N. Tatarskiy D.A. Dorokhin M.V. Zdoroveyshchev A.V. Demina P.B.
Journal of Alloys and Compounds2022，Vol.9268.DOI:10.1016/j.jallcom.2022.166956
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  • NSTL
  • Elsevier

Manipulation of micromagnetic structure of thin Co/Pt multilayer films by precise variation of Co and Pt thicknesses

Vikhrova O.V. 1Kudrin A.V. 1Kalentyeva I.L. 1Ved M.V. 1Trushin V.N. 1Temiryazeva M.P. 2Temiryazev A.G. 2Sadovnikov A.V. 3Orlova A.N. 4Tatarskiy D.A. 4Dorokhin M.V. 1Zdoroveyshchev A.V. 1Demina P.B.1
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作者信息

  • 1. Research Institute for Physics and Technology Lobachevsky State University
  • 2. Kotel'nikov Institute of Radio Engineering and Electronics (Fryazino Branch) Russian Academy of Sciences
  • 3. Laboratory of Magnetic Metamaterials Saratov State University
  • 4. Institute for Physics of Microstructures RAS
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Abstract

? 2022 Elsevier B.V.We have investigated the magnetic properties and micromagnetic structure of multilayer Co/Pt films with the variation of bilayer thickness ([Co(0.3 × t nm)/Pt(0.5 × t nm)]10). The films represent Co-Pt alloys with periodic Co vs Pt composition. The magnetic force microscopy and Lorentz transmission electron microscopy have demonstrated the presence of N é el-type skyrmions in the films. The density of skyrmions was found to be strongly dependent on the bilayer thickness parameter (t). The effect is attributed to Dzyaloshinskii–Moriya interaction which is known to be strongly dependent on the regularities of magnetic and nonmagnetic layers alternation. We emphasize that the investigated system represents an intermediate case between unalloyed multilayer films and uniformly mixed alloys. Despite that it demonstrates similar micromagnetic behavior with skyrmion density very well controllable by modulation of technological parameters.

Key words

Dzyaloshinskii–Moriya interaction/Magnetic films and multilayers/Micromagnetic structure/Skyrmions

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出版年

2022
Journal of Alloys and Compounds

Journal of Alloys and Compounds

EISCI
ISSN：0925-8388
被引量1
参考文献量43
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