报告人：杨洪新 教授（浙江大学）

题目：反对称交换耦合前沿进展

时间：2025年11月30日（周日）上午10：00

地点：理工楼1226

联系人：贾成龙, 于东星

报告摘要：

Understanding magnetic interactions is of fundamental importance in condensed matter physics as well as in the application of spintronic devices. In the last one and a half decades, the Dzyaloshinskii-Moriya interaction (DMI) has attracted increasing attention. Here, I will present a systemic survey of the first-principles calculations methods for DMI [1-3], along with an overview of the first-principles calculations of the DMI properties of typical material systems [4-6], based on the understanding of DMI, at last I will show how to use DMI-induced phenomena to switch perpendicular and in-plane magnetization [7,8].

参考文献：

[1] A. Fert, M. Chshiev, A. Thiaville, H. Yang,J. of the Phys. Society of Japan92 (2023) 081001

[2] H. Yang, J. Liang, Q. Cui,Nature Reviews Physics5 (2023) 43

[3] H. Yang, A. Thiaville, S. Rohart, A. Fert, M. Chshiev,Physical Review Letters115 (2015) 267210

[4] H. Yang, et al.Nature Materials17 (2018) 605

[5] Q. Zhang, et al.Physical Review Letters128 (2022) 167202

[6] J. Liang, M. Chshiev, A. Fert, H. Yang,Nano Letters22 (2022) 10128

[7] D. Yu, Y. Ga, J. Liang, C. Jia, H. Yang,Physical Review Letters130 (2023) 056701

[8] D. Yu, Y. Ga, et al,Physical Review Letters133 (2024) 206701

个人简介：

杨洪新，浙江大学求是特聘教授。研究兴趣主要集中在自旋电子学，提出的第一性原理计算反对称交换耦合的实空间自旋螺旋态计算方法获得国际同行的广泛使用；提出了DMI-和Bimeron-Torque 2种磁化矢量的写入新方法。已在Nat. Rev. Phys., Nat. Mater., Nat. Nanotech., PRL(12篇)等杂志上发表论文160余篇。主持国家重点研发课题等项目。