芝加哥大学研究人员在层状磁性材料Fe5GeTe2中发现了一种异常的量子态，其中大量电子集体运动的速度极其缓慢，同时仍然保持量子相干性1。这一发现发表在《科学进展》期刊2026年第32期上1，挑战了现有的理论预测，暗示该材料的磁相互作用与理论预期存在重大差异1。
研究团队采用ARPES技术在10微米的区域内聚焦紫外激光进行观测1。令人瞩目的是，电子的相干运动特性在距绝对零度100度以上的温度下仍然保持，这远高于类似量子材料的表现1。Yang助理教授表示："这是一项偏离理论预测的基础发现"1。该研究由美国能源部（资助号DE-SC0022960）和Gordon and Betty Moore Foundation（资助号GBMF12763）提供经费支持1。这一发现可能为新型存储设备的开发开辟新可能1。
Researchers at the University of Chicago's Pritzker School of Molecular Engineering have identified an unusual quantum state in the layered magnetic material Fe₅GeTe₂, where large numbers of electrons move collectively at extraordinarily slow speeds while maintaining quantum coherence.1 The discovery challenges existing theoretical predictions and suggests that the material's magnetic interactions differ fundamentally from what theory anticipated, potentially opening new possibilities for the development of novel storage devices.1
The findings, published in Science Advances in issue 32 of 2026, were observed using ARPES technology, with ultraviolet lasers focused on a 10-micrometer region for observation.1 Notably, the electrons' coherent behavior persists at temperatures exceeding 100 kelvin above absolute zero—considerably higher than similar quantum materials.1 "This is a fundamental discovery that deviates from theoretical predictions," according to Assistant Professor Yang.1 The research was supported by funding from the U.S. Department of Energy (Grant No. DE-SC0022960) and the Gordon and Betty Moore Foundation (Grant No. GBMF12763).1 Fe₅GeTe₂ is a van der Waals magnetic material first discovered seven years ago.1
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