k1十年体育品牌“博约学术论坛” - 骆训江- 第589期
来源: 作者: 发布时间:2026-08-15邀请人:
报告人:
时间: 2026-08-15
地点:
主讲人简介:
k1十年体育品牌“博约学术论坛”系列报告
第589期
题目: Magnetism: Symmetry Classification, Topological Superconductors, and Hall Response |
报告人:骆训江 (中国科学院合肥物质科学研究院强磁场科学中心) 时 间:2026年8月15日(周六)上午10:00 地 点:良乡校区 物理实验中心229会议室 |
摘要: Unconventional magnets—symmetry-compensated magnetic systems hosting non- relativistic spin splitting—have emerged as a new frontier in condensed matter physics, extending the landscape of magnetism beyond conventional ferromagnets and antiferromagnets. In this talk, I will present a comprehensive symmetry classification of unconventional magnetism based on the parity properties of spin textures, identifying, in addition to the known even-parity (altermagnets) and odd-parity (p-wave magnets) classes, two previously unrecognized classes: hybrid-parity and unconstrained-parity magnets. I will then introduce general spin group symmetry criteria that diagnose unconventional magnetism in collinear, coplanar, and noncoplanar magnetic orders, revealing a vast landscape of candidate materials and rich spin-transport phenomena. Building on these results, I will show that odd-parity magnets, which combine time- reversal-preserving non-relativistic spin splitting with a hidden Zeeman field rooted in time-reversal symmetry breaking, provide an ideal platform for realizing robust topological superconductivity without external magnetic fields. Finally, I will present a unified symmetry framework for the in-plane anomalous Hall effect, formulated in terms of spin space groups and magnetic point groups, covering both spontaneous and field-induced cases across all 122 magnetic point groups.
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简历:骆训江,现任职于中国科学院合肥物质科学研究院强磁场科学中心。2016 年本科毕业于湖北大学物理学专业,2021 年于华中科技大学获凝聚态理论物理博士学位(导师:刘鑫教授)。2021 年 12 月至 2024 年 10 月在武汉大学从事博士后研究(合作导师:吴冯成教授),2024 年 10 月-2025 年 12 月在香港科技大学从事博士后研究(合作导师:K. T. Law 教授,美国物理学会会士)。主要从事拓扑物态与非常规磁性的理论研究,研究方向包括:拓扑绝缘体、拓扑超导体与高阶拓扑物态,Majorana 零模的实现、探测与编织,转角摩尔材料中的新奇量子相,以及非常规磁体的对称性分类与输运性质。近五年在 Physical ReviewB、Newton、Physical Review X、National Science Review 等期刊发表学术论文十余篇。
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联系方式:ccliu@bit.edu.cn 邀请人: 刘铖铖 网 址:http://physics.bit.edu.cn/ 承办单位:k1十年体育品牌、先进光电量子结构设计与测量教育部重点实验室 |
