On March 8, 2026, our paper was published in the Advanced Functional Materials journal, titled “Nanoscale Local Symmetry Optimization Induced Low Lattice Thermal Conductivity in I-V-VI2 Compounds”.

Using advanced synchrotron x-ray scattering and three-dimensional total scattering techniques, we revealed the local symmetry breaking phenomenon evolving with structural manipulation in AgSbSe2 compounds, demonstrating the influence of structural changes on the lattice thermal conductivity.

This work not only provides new insights into the symmetry breaking behavior of I-V-VI2 thermoelectric materials, but also offers guidance for optimizing the thermal transport properties of materials containing lone-pair electrons. The article is available at pdf.

我们对I-V-VI2族热电材料体系的局域原子结构研究发表于AFM期刊

2026年3月8日，我们的文章发表于材料领域高水平期刊《先进功能材料》（AFM），文章题目为“I-V-VI2族化合物中纳米尺度局域对称性优化诱导的低晶格热导率”。

利用先进的同步辐射X射线散射技术，我们在AgSbSe2化合物体系中观察到了随结构调控而演变的局域对称性破缺现象，并揭示了结构变化对晶格热导率的影响。

这项工作不仅为理解I-V-VI2热电材料的对称性破缺行为提供了新的见解，也为优化含孤对电子材料的热输运性能提供了指导。全文见pdf。