摘要：

Some materials are easy to fall into a glassy state while the others are not. The critical cooling rates of metallic     materials to avoid crystallization can span over 17 orders of magnitude. The origin of this vast range of glass-        forming ability remains unclear, albeit heavily discussed in the literature. In recent years, we have been focusing on studying the crystallization kinetics and its structural origin in supercooled metallic liquids to understand the         physical mechanism of glass formation. We identified the critical role of liquid-crystal interfacial energy in not      only crystal nucleation but also in crystal growth.

Microscopically, the interfacial energy is determined by the nontrivial coupling between local structural and           compositional orderings. The formation of crystal-like pre-orderings effectively wets the nuclei and reduces the    topological and chemical gradients at the interface, which decreases the interfacial energy and facilitates                crystallization. This non-classical pathway poses great challenges to the classical nucleation theory. This finding is  further corroborated by an order-killing strategy. The exceptional importance of competing ordering effects is       revealed. We extended what we learned theoretically to help design a high-performance supercooled electrolytes for low temperature Na-ion batteries. The underlying physical principles are further discussed to bridge glass        physics and battery research.

主讲人简介：

胡远超，国家⾼层次青年⼈才，松⼭湖材料实验室研究员，⼯学博⼠，博⼠⽣导师。于2018年在中国科学院物理研究所和香港城市⼤学获得博⼠学位。曾任东京⼤学JSPS博⼠后和耶鲁⼤学助理研究员。主要研究⽅向为利用计算机模拟研究非晶态材料与物理，以及利用数据科学⽅法加速新材料的研发。曾获得国家自然科学基⾦面上项目支持。相关研究⼯作发表在Nature Materials, Nature Energy, Nature Physics，Nature Communications，PNAS，Science Advances，AdvancedMaterials等国际学术期刊，担任包括Nature，Nature Physics，PRL等知名学术期刊审稿⼈。