超越几何顺序:揭示玻璃中的粘接-异质性-主导结构-放松合
Liang Gao1,2, Jia-Qi Gao1, Qing-Zhou Bu1
1Wuhan National High Magnetic Field Center and School of Physics, Huazhong University of Science and Technology, Wuhan 430074, China.
National science review
|February 18, 2026
概括
电子结构,而不仅仅是几何学,支配无形材料的特性. 我们的研究表明,金属玻璃的粘合差异决定了它们的动态行为和放松,指导了未来的材料设计.
科学领域:
- 材料科学 材料科学 材料科学
- 凝聚物质物理学 凝聚物质物理学
- 计算材料科学科学 计算材料科学
背景情况:
- 对于晶体材料来说,微观结构与性质的关系已经得到了很好的证实.
- 将无形结构与宏观性质联系起来仍然具有挑战性,传统的几何分析往往不足.
- 了解无形材料的行为需要探索除了简单的原子包装之外的因素.
研究的目的:
- 为了研究在无形金属玻璃中控制二次放松的因素.
- 为了证明几何包装在预测无形系统属性的局限性.
- 确定电子结构和化学结合在无形材料动态中的作用.
主要方法:
- 对两种基于的金属玻璃进行实验分析,它们具有相似的几何形状,但有不同的放松度.
- 电子结构分析,以确定结合和网络发展的差异.
- 实验数据与深度学习模拟的整合.
主要成果:
- 研究的金属玻璃中的相同几何形状掩盖了不同的二次放松行为.
- 电子结构分析显示,在一个玻璃中,Cu-P键较弱,共价网络较不发达,使得状的原子运动和明显的放松.
- 在另一玻璃中更强的Ni-P相互作用导致了更受约束的网络和有限的放松.
- 受到电子相互作用影响的局部结合异质性被确定为关键的差异化因素.
结论:
- 电子相互作用和粘合波动是玻璃动态的关键决定因素,超越了纯粹的几何考虑.
- 无形材料设计的新范式应该优先考虑电子结构和化学结合,而不是几何秩序.
- 这项工作弥合了局部化学异质性和宏观行为之间的差距,推进了玻璃物理.
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