纽约城市学院研究人员在《Nature Materials》期刊发表综述文章《Excitons in van der Waals magnetic materials》，阐述了原子级薄材料中光与磁相互作用的最新进展1。该综述由Vinod M. Menon的纳米与微光子实验室（LaNMP）团队完成，第一作者为Pratap Chandra Adak1。
研究聚焦于范德瓦尔斯磁性半导体中的激子与磁有序的耦合现象1。在三碘化铬、磷化镍三硫化物和溴化硫化铬等二维磁体中，光生激子可与磁有序和磁振子相互作用1。Adak指出："在这些材料中，光和磁不再作为分离的通道运作"1。Menon进一步表示，该领域已从"在原子级薄晶体中检测磁性发展到积极探索磁有序如何控制光-物质相互作用"1。
这一发现为多种应用奠定基础1。研究团队指出，磁光耦合有望在磁光存储、全光逻辑、可调光发射器、磁光激光器和偏振子技术等领域开辟新途径1。该项工作由美国国防高等研究计划局（DARPA）和Gordon and Betty Moore基金会资助1。
Researchers at City College of New York have published a comprehensive review in Nature Materials examining how light and magnetism interact in atomically thin materials.1 The review, titled "Excitons in van der Waals magnetic materials," comes from Vinod M. Menon's Laboratory for Nano and Micro Photonics (LaNMP) and explores how photon-generated excitons can couple with magnetic ordering and magnons in van der Waals magnetic semiconductors.1
The work demonstrates that in these two-dimensional magnetic materials—including chromium triiodide, nickel phosphide trisulfide, and chromium sulfide bromide—light and magnetism no longer function as separate channels.1 According to Pratap Chandra Adak, the review's lead author, "In these materials, light and magnetism no longer operate as separated channels."1 Vinod M. Menon added that the field has progressed from simply detecting magnetism in atomic-scale thin crystals to actively investigating how magnetic ordering can control light-matter interactions.1
The emerging applications of this research span multiple technological domains, including magneto-optical storage, all-optical logic, tunable light emitters, magneto-optical lasers, and polarization devices.1 The research was supported by DARPA and the Gordon and Betty Moore Foundation.1
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