Dynamical Rearrangements of 3-D Vortex Structures in Moving Domain Walls in Continuous and Antidot Patterned Permalloy Films

Zverev, V. V.; Izmozherov, I. M.

doi:10.1109/tmag.2021.3083704

Cited by 4 publications

(2 citation statements)

References 19 publications

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“…The distribution of domain walls is similar with the diamond wall, which usually appears in the square microstructure. Moreover, the arrangement of vortex-antivortex pairs is along the positions of domain walls, which is also known as the cross-tie wall [24,25]. The observed dynamic is general (figures S3-S5): the similar vortex-antivortex pairs appeared in all structures studied here.…”

Section: The Morphology and Magnetic Textures In Confined Microstruct...supporting

confidence: 52%

“…Such a frequency is lower than the one of isolated vortex [23]. The vortex-antivortex pairs can also nucleate in a cross-tie wall spontaneously [24,25], which can affect the dynamics of domain walls [26]. Thus, vortex-antivortex pairs offers great potential for applications of information storage and processing based on its dynamics [27,28].…”

Section: Introductionmentioning

confidence: 99%

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Spontaneous nucleation of vortex–antivortex pairs in confined magnetic microstructures

Shen,

Bo,

Zhao

et al. 2023

J. Phys. D: Appl. Phys.

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Vortex–antivortex pairs have shown great potential in spintronics, where they can be used for information storage and logical devices. However, the physical mechanism for the nucleation of vortex–antivortex pairs is still unclear due to its metastability. We report on spontaneous nucleation of vortex–antivortex pairs in patterned Fe20Ni80 films (circular, square, hexagonal islands). By using a complex approach involving micromagnetic simulations, more in-depth understanding of vortex pair nucleation was achieved. A large amount of vortex–antivortex pairs appear in the as-grown magnetic film, which is the unstable high-energy state. Then, vortex and antivortex moves towards each other and annihilate, transforming magnetic structures and lowering the total energy of the system. With the decrease of sizes of microstructures, isolated vortex becomes stabilized due to confinement effect. These results provide a physical view for the nucleation of vortex–antivortex pairs and may be useful for design and optimization of magnetic microstructures for future spintronic applications.

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Section: The Morphology and Magnetic Textures In Confined Microstruct...supporting

confidence: 52%

Section: Introductionmentioning

confidence: 99%

Spontaneous nucleation of vortex–antivortex pairs in confined magnetic microstructures

Shen,

Bo,

Zhao

et al. 2023

J. Phys. D: Appl. Phys.

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show abstract

Impact of an external magnetic field on vortex-like magnetic structures in perforated films

Magadeev,

Vakhitov,

Kanbekov

2024

Physica B: Condensed Matter

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Micromagnetic Simulation of Irregular Magnetization Reversal Dynamics in a Nanosized Permalloy Film with a Stepped Relief of the Boundary Surface

Zverev

2024

Phys. Metals Metallogr.

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Dynamical Rearrangements of 3-D Vortex Structures in Moving Domain Walls in Continuous and Antidot Patterned Permalloy Films

Cited by 4 publications

References 19 publications

Spontaneous nucleation of vortex–antivortex pairs in confined magnetic microstructures

Spontaneous nucleation of vortex–antivortex pairs in confined magnetic microstructures

Impact of an external magnetic field on vortex-like magnetic structures in perforated films

Micromagnetic Simulation of Irregular Magnetization Reversal Dynamics in a Nanosized Permalloy Film with a Stepped Relief of the Boundary Surface

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