Cs3V9Te13：一种具有类雷乌尔三角晶格的新钒基材料及其可能在48 K附近的相变
$\mathrm{Cs_3V_9Te_{13}}$: A New Vanadium-Based Material with a Reuleaux-Triangle-Like Lattice and a Possible Phase Transition near 48 K
AI总结：
研究发现新型钒基材料Cs3V9Te13具有类雷乌尔三角晶格，其在48 K附近表现出异常电输运和磁性特征，可能与电子或磁性相变相关，同时揭示了其可调电子态和压致反铁磁性。
摘要：
探索和合成具有新晶体结构的材料为发现 exotic 量子现象提供了重要途径。然而，具有非常规晶格几何的材料仍鲜有研究。本文报告了新型钒基材料Cs3V9Te13的发现，其具有类雷乌尔三角晶格。电输运和磁性测量一致显示在48 K附近出现异常，且对施加磁场不敏感。Hall系数在48 K附近也出现相应异常，表明载流子响应显著变化。温度依赖的X射线衍射结果表明48 K附近无明显结构变化。综合来看，这些结果表明异常并非由结构转变引起，而是可能与电子和/或磁性相变有关。高压输运测量和第一性原理计算进一步揭示了Cs3V9Te13中高度可调的电子态，具有类似 Kagome 的电子特征和压力抑制的反铁磁性。这些结果表明，该材料以其结构新颖的类雷乌尔三角晶格，成为研究非平凡晶格几何与新兴物理现象相互作用的新平台。
英文摘要：
Exploring and synthesizing materials with new crystal structures provides an important route to discovering exotic quantum phenomena. However, materials with unconventional lattice geometries remain largely unexplored. Here, we report the discovery of a new vanadium-based material, $\mathrm{Cs_3V_9Te_{13}}$, featuring a Reuleaux-triangle-like lattice. Electrical transport and magnetic measurements consistently reveal an anomaly near 48 K, and this feature shows little sensitivity to the applied magnetic field. A corresponding anomaly is also observed in the Hall coefficient near 48 K, indicating a marked change in the carrier response. In addition, temperature-dependent x-ray diffraction results indicate no obvious structural change across 48 K. Taken together, these results suggest that the anomaly is not induced by the structural transition, but associated to a possible electronic and/or magnetic phase transition. High-pressure transport measurements and first-principles calculations further reveal a highly tunable electronic state in $\mathrm{Cs_3V_9Te_{13}}$, with the kagome-like electronic feature and pressure-suppressed antiferromagnetism. These results demonstrate this material, with its structurally novel Reuleaux-triangle-like lattice, as a new platform for exploring the interplay between nontrivial lattice geometry and emergent physical phenomena.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
