Domain engineering in ferromagnetic morphotropic phase boundary with enhanced and non-hysteretic magnetostriction: A phase-field simulation

Xu, Y.X.; Wu, Y.Y.; Hu, C.C.; Cai, T.T.; Zhang, Z.; Huang, H.H.; Fu, P.; Huang, H.B.; Chen, L.Q.

doi:10.1016/j.scriptamat.2023.115916

Scripta Materialia

2024

DOI: 10.1016/j.scriptamat.2023.115916

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Domain engineering in ferromagnetic morphotropic phase boundary with enhanced and non-hysteretic magnetostriction: A phase-field simulation

Y.X. Xu,

Y.Y. Wu,

C.C. Hu

et al.

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Cited by 3 publications

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Ultralow-energy multiferroic majority gates via magnetostrictive heterogeneity

Jiang,

Cai,

Liang

et al. 2025

Journal of Magnetism and Magnetic Materials

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Ultralow-energy multiferroic majority gates via magnetostrictive heterogeneity

Jiang,

Cai,

Liang

et al. 2025

Journal of Magnetism and Magnetic Materials

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Rethinking hysteresis in magnetic materials

Renuka Balakrishna

2024

MRS Communications

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Magnetic materials with zero hysteresis are posed to have a significant impact on sustainable energy conversion, electronics, and communication technologies. As the global market for soft magnetic materials continues to expand, driven by increasing demand in renewable energy, automotive, and power transmission sectors, it is important to design magnets that can be cycled under an external field reversibly and rapidly multiple times without a decay in magnetic response. However, designing magnets with small hysteresis has been a challenge because we do not fully understand its origins. In this article, I outline key research efforts investigating the fundamental mechanisms underpinning hysteresis in soft magnets and, highlight recent developments in the use of nonlinear analysis and nucleation barrier methods to predict coercivity in these materials. Graphical abstract

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Magnetic-field driven domain wall evolution in rhombohedral magnetostrictive single crystals: a phase-field simulation

Xu,

Cai,

et al. 2024

Microstructures

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Single crystal of Tb0.3Dy0.7Fe2 (Terfenol-D) with a composition close to the pre-transitional rhombohedral side of the ferromagnetic morphotropic phase boundary has demonstrated remarkable magnetostrictive properties, stimulating intensive research interest in the field of magneto-mechanical transducers and actuators. The enhanced magnetoelastic response of (Tb-Dy)Fe2 single crystals has been extensively linked to the structural phase transition and magnetic domain evolution. This research utilized the micromagnetic microelastic phase-field technique to examine the evolution of domain walls in rhombohedral ferromagnetic single crystals of (Tb-Dy)Fe2, which is essential for understanding the magnetostriction “jump” effect. The study involved simulating the creation and development of domains and domain boundaries under a periodic boundary condition that allows for non-zero strain. It was found that the two typical distinct types of domain walls (i.e., 71° and 109°) exhibited disparate responses to the applied magnetic fields. At magnetic field magnitudes below the coercive field, a domain wall broadening mechanism was detected within the 71° domain wall. However, upon surpassing the coercive field, a process of homogeneous magnetization switching ensued, devoid of evident displacement of the 71° domain walls. The magnetization switching effectively elucidated the magnetostriction “jump” effect of the rhombohedral single crystals. The act of sweeping the 109° domain walls resulted in the occurrence of heterogeneous magnetization switching. This study elucidates the evolutionary mechanism of two typical rhombohedral domain walls in response to applied magnetic fields, potentially offering valuable insights into the future design of excellent magnetostrictive materials through domain engineering.

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Domain engineering in ferromagnetic morphotropic phase boundary with enhanced and non-hysteretic magnetostriction: A phase-field simulation

Cited by 3 publications

References 30 publications

Ultralow-energy multiferroic majority gates via magnetostrictive heterogeneity

Ultralow-energy multiferroic majority gates via magnetostrictive heterogeneity

Rethinking hysteresis in magnetic materials

Magnetic-field driven domain wall evolution in rhombohedral magnetostrictive single crystals: a phase-field simulation

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