--- 格式版本: 2 标题: "Quantum breakthrough links light and magnetism in atomically thin materials | ScienceDaily" 原文链接: "http://www.sciencedaily.com/releases/2026/07/260715083523.htm" 发布日期: "2026-07-16" 发布时间校准状态: "found" 发布时间来源: "llm:strict_original_body" 发布时间证据: "dd id=date_posted: July 16, 2026" 发布时间校准原因: "该日期来自 ScienceDaily 文章元数据字段 dd id=date_posted，明确标识为文章发布日期，且与 URL 中的日期段 260715 及当前 YAML 发布日期一致，确认为真实发…" 发布时间校准置信度: "100" 发布时间候选数量: 57 发布时间严格候选数量: 23 发布时间原页读取状态: "原页面来自已抓取 HTML" 发布时间未找到原因: "候选日期无效或 LLM 未确认" 发布时间校准时间: "2026-07-20T05:32:36+08:00" 发现时间: "2026-07-19T17:46:31+08:00" 入库时间: "2026-07-19T21:34:10.355Z" 来源平台: "Tavily（AgentKey）" 搜索渠道: "tavily_web" 搜索词: "超聚变" 匹配关键词: [] 相关厂家: - "超聚变" 相关专家: [] 内容类型: "网页" 抓取工具: "AgentKey Scrape" 清洗工具: "AgentKey Markdown + LLM 正文裁剪" 原始附件: [] AI优质: "否" AI打分: 18 AI分档: "非优质" AI质检状态: "不通过" AI打分理由: "文章主题为原子级薄层量子材料中光与磁性的相互作用，属于基础物理与量子技术前沿研究，与超节点/AI Rack/机柜级AI基础设施、供电散热互连、量产部署等核心关注范围完全无关。" AI质检模型: "qwen3.6-plus" AI质检时间: "2026-07-20T05:34:10+08:00" AI主题相关性: 0 AI来源权威性: 8 AI新颖性: 5 AI技术细节: 0 AI商业部署信号: 0 AI完整性: 5 图片摘要: - "✗ ./assets/img-e43b8a7c.webp | decorative | AI生成的装饰性概念图，无具体数据、架构或参数信息" 采集批次: "2026年7月19日17点45分46秒" 采集批次ID: "20260719-174546-694" 去重键: "http://www.sciencedaily.com/releases/2026/07/260715083523.htm" --- Science News --- Date: July 16, 2026 Source: City College of New York Summary: A new review highlights exciting progress in atomically thin quantum materials where light and magnetism work together in ways never before possible. In these materials, light-generated excitons can interact directly with magnetic behavior, creating opportunities to control magnetic states using light alone. Scientists believe this could pave the way for advanced optical memory, quantum devices, and ultra-efficient photonic technologies. Share: FULL STORY --- ![The Next Generation of Quantum Materials](./assets/img-e43b8a7c.webp) Scientists are uncovering ultra-thin materials where light can directly interact with magnetism, opening an exciting path toward next-generation quantum technologies. Credit: AI/ScienceDaily.com Researchers at the City College of New York are charting a fast-growing area of quantum science centered on materials only a few atoms thick. In these systems, light, electric charge, and magnetism are closely connected rather than behaving independently. The work comes from physicist Vinod M. Menon's Laboratory for Nano and Micro Photonics (LaNMP). Researchers believe these unusual interactions could eventually support advanced optoelectronic devices and quantum technologies that manipulate light, charge, and electron spin together. **When Light and Magnetism Interact** In a review published in *Nature Materials*, titled "Excitons in van der Waals magnetic materials," the researchers examine recent progress involving layered magnetic semiconductors. These materials allow light-generated excitations called excitons to interact with magnetic order and with magnetic waves known as magnons. An exciton forms when incoming light energizes an electron and causes it to move, leaving behind a positively charged "hole." The electron and hole remain linked, forming an electrically neutral particle that can still interact strongly with light. Magnons are different. They are collective waves that travel through the organized magnetic structure of a material. Scientists have spent years trying to unite the optical properties of exciton-rich semiconductors with magnetism. Earlier strategies included adding magnetic atoms to semiconductors or stacking atomically thin semiconductors on top of magnetic materials. Van der Waals magnetic semiconductors provide a more direct approach. Within these crystals, excitons and magnetic moments can emerge from the same electronic orbitals. This shared origin allows light and magnetism to influence one another inside the material itself. "In these materials, light and magnetism no longer operate as separate channels," said Pratap Chandra Adak, a postdoctoral researcher in Menon's group and lead author of the Review. "An exciton is not just a passive light-driven excitation sitting on top of the magnetism. It can sense the spin order and magnons, and under the right conditions, even help control the magnetic state itself." **Reading Magnetic States With Light** The Review examines several important material platforms, including chromium triiodide, nickel phosphorus trisulfide, and chromium sulfur bromide. Research on these two-dimensional magnets has revealed several ways that excitons and magnetic behavior can affect each other. Excitons can significantly strengthen magneto-optical effects, allowing scientists to identify magnetic states by observing changes in the polarization of light. Magnetic order can also alter the energy of excitons and influence where they are confined within a material. Interactions between excitons and magnons can connect optical signals with magnetic activity occurring at gigahertz frequencies. The researchers also discuss exciton polaritons, hybrid particles that combine properties of light and matter and can transport optical information through a material. "Over the past few years, this field has moved from detecting magnetism in atomically thin crystals to actively exploring how magnetic order can control light-matter interactions," said Menon, professor of physics and senior author of the Review. "The goal of this article is to bring those developments into a coherent framework and identify where the field can go next." **New Possibilities for Quantum Technology** The researchers identify several potential applications that would depend on precise control of light and magnetism at extremely small scales. These include magneto-photonic memory and data readout, all-optical logic, adjustable light-emitting devices, magneto-optic lasers, and polaritonic technologies. Another promising application involves quantum transducers. These devices convert signals between microwave and optical frequencies, a capability that could become important for connecting components in future quantum networks. **Major Scientific Challenges Remain** Despite the rapid progress, much of this field remains unexplored. Many possible materials have not yet been studied in detail, and scientists still need better theoretical models that can predict how excitons, electron spins, lattice vibrations, and photons behave when they interact at the same time. Future research could investigate moiré magnetic excitons, the optical control of spin textures, magneto-photonic devices, magnetic exciton polariton condensation, and the conversion of microwave signals into optical signals for quantum communication. *Other co-authors include Florian Dirnberger of the Technical University of Munich; Swagata Acharya of the National Laboratory of the Rockies; Akashdeep Kamra of Rheinland-Pfälzische Technische Universität Kaiserslautern-Landau; and Xiaodong Xu of the University of Washington.* *The work at CCNY was supported by DARPA and the Gordon and Betty Moore Foundation.* --- **Story Source:** [Materials](https://www.ccny.cuny.edu/news/ccny-led-researchers-define-new-frontier-quantum-materials) provided by **City College of New York**. *Note: Content may be edited for style and length.* --- **Journal Reference**: 1. Pratap Chandra Adak, Florian Dirnberger, Swagata Acharya, Akashdeep Kamra, Xiaodong Xu, Vinod M. Menon. **Excitons in van der Waals magnetic materials**. *Nature Materials*, 2026; DOI: [10.1038/s41563-026-02636-0](http://dx.doi.org/10.1038/s41563-026-02636-0) --- **Cite This Page**: City College of New York. "Quantum breakthrough links light and magnetism in atomically thin materials." ScienceDaily. ScienceDaily, 16 July 2026. . City College of New York. (2026, July 16). Quantum breakthrough links light and magnetism in atomically thin materials. *ScienceDaily*. Retrieved July 19, 2026 from www.sciencedaily.com/releases/2026/07/260715083523.htm City College of New York. "Quantum breakthrough links light and magnetism in atomically thin materials." ScienceDaily. www.sciencedaily.com/releases/2026/07/260715083523.htm (accessed July 19, 2026).