标题: Engineering quantum magnetic materials

报告人：王冲 美国华盛顿大学

报告时间：2023年2月7日（周二）上午9：00-10：30

腾讯会议ID: 162-440-504

摘要: Magnets play a vital role in modern technology. Ferromagnets, for example, use collective aligned spins in magnetic domains to store information. But if neighboring spins are allowed to point in different directions, many new possibilities arise. This talk will explore three interconnected stories about magnetic materials, emphasizing the role of quantum engineering in magnetism and its potential applications. I will highlight the potential of antiferromagnets, which have vastly different physical properties from ferromagnets, and show how they can benefit from nonlinear electron transport in various applications. I will also show that magnetic textures, typically arising from the Dzyaloshinskii-Moriya interaction, can also be induced by magnetoelastic coupling or stacking variance. These textures possess novel dynamics, either reflected in their accessibility to a spin model description or manifested in their unique magnon structure.

个人简介：王冲博士于2014年在南京大学获理学学士学位，2019年在清华大学高等研究院获理学博士学位。此后他在美国卡耐基梅隆大学（2019-2021）、美国华盛顿大学（2021至今）从事博士后研究工作。他的研究领域是理论与计算凝聚态物理，主要研究方向包括磁性结构和动力学、光和物质相互作用、输运理论等。近期他重点关注量子材料非线性响应的新现象和新研究手段。