Seoul National University
报告人简介：
Je-Geun Park is a Professor of Physics and Astronomy at Seoul National University and the Director of the Centre for Quantum Materials. He received his Ph.D. from Imperial College London in 1993 and subsequently held research and faculty positions at CNRS-Grenoble, Birkbeck College (London), Inha University, and Sungkyunkwan University before joining SNU in 2010.
Park's research focuses on magnetism in strongly correlated electron systems, with a particular emphasis on two-dimensional materials. He is a pioneering figure in the field of van der Waals magnets, best known for his seminal 2016 discovery of intrinsic antiferromagnetism in monolayer FePS3. This groundbreaking work helped launch the now-thriving field of 2D van der Waals magnetism, particularly in the areas of spintronics and quantum magnetism.
He has authored over 350 scientific publications, which have garnered more than 27,000 citations. His achievements have been recognized with prestigious honors, including the Korea Science Award (2016) and the POSCO TJ Park Science Prize (2023). Park serves on the advisory boards of leading scientific journals and has been a member of the Korean Academy of Science and Technology since 2017.
报告摘要：
The discovery of magnetism in atomically thin materials has opened an entirely new chapter in the study of low-dimensional quantum matter. Since the first reports of antiferromagnetic van der Waals magnets in 2016, followed by the discovery of ferromagnetic counterparts in 2017, the field has evolved into one of the most vibrant areas of condensed matter physics. In this talk, I will give a comprehensive overview of the key developments in the field of 2D vdW magnetism, drawing from my recent review.
I will begin with the historical and theoretical context, explaining why 2D magnetism was once thought to be impossible, and how recent materials have overcome these constraints. I will then discuss the rapidly expanding family of van der Waals magnets, their underlying spin Hamiltonians, and experimental platforms for probing magnetic excitations, chirality, and phase transitions. The talk will also highlight surprising phenomena such as magnetic excitons, Floquet-engineered states, and light-induced metastable phases.
On the application side, I will describe how these materials are being integrated into spintronic architectures, with progress toward reconfigurable memory, spin filters, and ultrafast switching devices. I will conclude with an outlook on key open questions, emerging directions, and the future for this still-young but rapidly maturing field.
邀请人：李源 (8264 9305)
联系人：胡颖（8264 9361）
报告地点：中国科学院物理研究所M楼236会议室