Flexomagnetism: Progress, challenges, and opportunities

IF 31.6 1区材料科学 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY

Materials Science and Engineering: R: Reports Pub Date : 2024-11-15 DOI:10.1016/j.mser.2024.100878

Ziming Tang , Qihua Gong , Min Yi

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引用次数: 0

Abstract

Flexomagnetism refers to the higher order magneto-mechanical coupling, associating magnetic polarization with strain gradient. Although it is weak in bulk materials, the flexomagnetic effect in small-sized samples where the strain gradient could be remarkably large presents an opportunity for the efficient manipulation of magnetic performance in nanomaterials and advanced spintronic devices. In this article we share a state-to-the-art review on the progress, challenges, and opportunities for exploring flexomagnetism. The review starts with the narrow and general definitions of flexomagnetism with a focus on the intrinsic flexomagnetism and flexomagnetic response, respectively. Then we demonstrate the different types of strain gradient for inducing the flexomagnetic effect, the theoretical models at various scales for flexomagnetism, and the simulation/experimental progress on the manipulation of magnetic properties by using flexomagnetic effect. We then discuss the current controversies and challenges regarding the disagreements between experimental and computational results as well as the limitations of existing hypotheses. Lastly, we suggest some prospects for future research on flexomagnetism.

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柔性磁性：进展、挑战和机遇

柔磁是指磁极化与应变梯度之间的高阶磁机械耦合。虽然它在块状材料中很弱，但在应变梯度可能非常大的小尺寸样品中，挠磁效应为有效操纵纳米材料和先进自旋电子器件的磁性能提供了机会。在这篇文章中，我们将与大家分享有关探索挠性磁性的进展、挑战和机遇的最新综述。综述首先介绍了挠性磁性的狭义和广义定义，分别侧重于本征挠性磁性和挠性磁响应。然后，我们展示了诱导挠磁效应的不同应变梯度类型、不同尺度的挠磁理论模型，以及利用挠磁效应操纵磁性能的模拟/实验进展。然后，我们讨论了当前在实验和计算结果之间的分歧以及现有假设的局限性方面存在的争议和挑战。最后，我们对未来的挠性磁学研究提出了一些展望。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Materials Science and Engineering: R: Reports 工程技术-材料科学：综合

CiteScore

60.50

自引率

0.30%

发文量

审稿时长

34 days

期刊介绍： Materials Science & Engineering R: Reports is a journal that covers a wide range of topics in the field of materials science and engineering. It publishes both experimental and theoretical research papers, providing background information and critical assessments on various topics. The journal aims to publish high-quality and novel research papers and reviews. The subject areas covered by the journal include Materials Science (General), Electronic Materials, Optical Materials, and Magnetic Materials. In addition to regular issues, the journal also publishes special issues on key themes in the field of materials science, including Energy Materials, Materials for Health, Materials Discovery, Innovation for High Value Manufacturing, and Sustainable Materials development.