报告题目：First-principles calculations for Dzyaloshinskii-Moriya interaction and its application for the DMI-torque switching of perpendicular magnetization

报告时间：3月7日12:00

报告地点：唐仲英楼B501

报告摘要：Understanding the magnetic interactions is of fundamental importance in condensed matter physics as well as in the application of spintronic devices. In the past 14 years, the Dzyaloshinskii-Moriya interaction (DMI) has attracted increasing attention. Here, I will present a systemic survey of the first-principles calculation methods for DMI [Nat. Rev. Phys. 5, 43 (2023); PRL. 115, 267210 (2015)], along with an overview of the first-principles calculations of the DMI properties of typical material systems [Nat. Mater. 17, 605 (2018); PRL 128, 167202 (2022); Nano Lett. 22, 10128 (2022)] and the DMI-induced magnetic phenomena, e.g. skyrmions-based logic gates [Natl. Sci. Rev. 9, nwac021 (2022], DMI-torque switching of perpendicular magnetization [PRL 130, 056701 (2023)]

报告人简介：杨洪新，南京大学物理学院教授。从事自旋电子学理论计算研究，重点致力于反对称交换耦合Dzyaloshinskii-Moriya Interaction (DMI)和垂直磁各向异性等的理论计算方法发展、物理机制探索、材料体系开发和新型自旋电子学器件设计等研究。发展的第一性原理计算DMI的实空间自旋螺旋态短自旋波超原胞算法已是国际上最被广泛使用的方法。发表学术论文100余篇, 重要期刊（Nat. Rev. Phys./Nat. Mater./Nat. Nanotech./PRL/Nat. Comm./Adv. Mater./Nano Lett.）论文23篇。主持国家重点研发子课题、国家海外高层次青年人才、自然科学基金、中科院原始创新等项目。在APS March Meeting及InterMag等做邀请报告，担任2019年APS March Meeting分会主席，组织2019年MMM分会并任分会主席，IEEE senior member。