Domain-wall coercivity in ferromagnetic systems with nonuniform local magnetic field

Půst, L.; Bertotti, G.; Tomáš, I.; Vértesy, Gábor

doi:10.1103/physrevb.54.12262

Cited by 4 publications

(1 citation statement)

References 14 publications

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“…Correlation between the coercive properties of a soft magnetic material and the geometry of its domain structure was studied [92][93][94]. The coercive properties of soft magnetic material and the ways of influencing them through engineering of the domain structure geometry are discussed.…”

Section: Magnetostatic Designing Of Coercivitymentioning

confidence: 99%

Coercive Properties of Magnetic Garnet Films

Vértesy

2023

Crystals

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Magnetic garnet films represent a wide family of materials. By the proper choice of chemical composition and growth parameters, their magnetic behavior can be tuned in a very wide range. On one side, they are suitable for many different applications; on the other side, they are optimal model materials for studying the basic magnetization processes. Many assumptions of the existing theories can be checked or validated by magnetic garnet film investigation. Their production technology was developed many decades ago, but even nowadays, magnetic garnet films have been intensively studied, and newer and newer application possibilities have been found. In this review paper, those results are summarized, which are connected with their coercive properties. Coercivity, or coercive force, is a frequently used magnetic characteristic, but usually, it is considered rather a technical parameter. It is shown that there is no correlation between the so-called “technical coercive force” (which is the half-width of a major hysteresis loop) and the domain wall coercivity (this is frequently called a domain wall pinning field). This latter parameter is considered a real characteristic of domain wall movement. If magnetic garnet films are investigated, the correlation between moving domain wall and material defect structure can be studied. In this paper, the very complex feature of coercivity is shown. It is demonstrated that the domain structure, the properties of domain walls, the existence of mechanical stresses, the temperature, the size of the sample and many other parameters have an influence on the measured coercivity.

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Section: Magnetostatic Designing Of Coercivitymentioning

confidence: 99%

Coercive Properties of Magnetic Garnet Films

Vértesy

2023

Crystals

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Preisach Model and Simulation of Relaxation Kinetics

Metlov

Handbook of Advanced Magnetic Materials

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Design of modern magnetic materials with giant coercivity

Gorbachev¹,

Kozlyakova²,

Trusov³

et al. 2021

Russ. Chem. Rev.

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The review is devoted to compounds and materials demonstrating extremely high magnetic hardness. The recent advances in the synthesis of modern materials for permanent magnets are considered, and a range of exotic compounds interesting for fundamental research is described. The key details of chemical composition, crystal structure and magnetic microstructure responsible for the appearance of high magnetic anisotropy and giant coercivity are analyzed. The challenges of developing the title materials are noted and strategies for their solution are discussed. The bibliography includes 389 references.

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Domain-wall coercivity in ferromagnetic systems with nonuniform local magnetic field

Cited by 4 publications

References 14 publications

Coercive Properties of Magnetic Garnet Films

Coercive Properties of Magnetic Garnet Films

Preisach Model and Simulation of Relaxation Kinetics

Design of modern magnetic materials with giant coercivity

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