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

被引：3

作者：

Xu, Y. X. ^{[1
]}

Wu, Y. Y. ^{[1
]}

Hu, C. C. ^{[1
]}

Cai, T. T. ^{[1
]}

Zhang, Z. ^{[1
]}

Huang, H. H. ^{[1
]}

Fu, P. ^{[1
]}

Huang, H. B. ^{[2
]}

Chen, L. Q. ^{[3
]}

机构：

[1] Liaocheng Univ, Sch Mat Sci & Engn, Liaocheng 252000, Shandong, Peoples R China

[2] Beijing Inst Technol, Adv Res Inst Multidisciplinary Sci, Beijing 100081, Peoples R China

[3] Penn State Univ, Dept Mat Sci & Engn, University Pk, PA 16802 USA

来源：

SCRIPTA MATERIALIA | 2024年 / 242卷

基金：

中国国家自然科学基金;

关键词：

Phase-field model; Domain engineering; Magnetostriction; Morphotropic phase boundary;

D O I：

10.1016/j.scriptamat.2023.115916

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Giant and non-hysteretic magnetostriction is critical for magneto-mechanical applications, such as transducers, sensors, and actuators. In this work, the introduction of domain engineering into the single crystals near the ferromagnetic morphotropic phase boundary (MPB) is achieved through phase-field simulation, with the aim of exerting control over domain configuration and magnetostriction. It is found that intermediate external magnetic fields applied along non-easy magnetic axes during the nucleation stage can significantly affect the subsequent domain growth and evolution kinetics. The simulations reveal a domain wall broadening mechanism to explain the significantly improved non-hysteretic magnetoelastic responses observed in engineered tetragonal crystals. Our simulation results additionally demonstrate a discernible correlation between the domain wall densities and external fields in the engineered tetragonal domain. This research provides a potential pathway for the advancement of giant and non-hysteretic magnetostrictive material designs.

引用

页数：4

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