论文标题
AV $ _3 $ SB $ _5 $ KAGOME超级导体的完全混乱性：混合A-Site AV $ _3 $ SB $ _5 $（A：K，RB，CS）合金的设计
Complete miscibility amongst AV$_3$Sb$_5$ kagome superconductors: design of mixed A-site AV$_3$Sb$_5$ (A: K, Rb, Cs) alloys
论文作者
论文摘要
在这项工作中，我们探讨了通过A个位置合金的AV $ _3 $ SB $ _5 $ family的化学质能相图。我们证明了碱性位点的完全混乱，这强调了三种母体化合物是单个固体溶液的末端末端。使用多晶和单晶方法，我们绘制两个主要电子不稳定性的依赖性：（1）电荷密度波（CDW）顺序的开始（$ t_ \ text {cdw} $）和（2）超导性（$ t_ \ text {c} $）的启动，并使用碱性兼容。我们在$ t_ \ text {cdw} $和$ t_ \ text {c} $中都显示了连续趋势，包括k $ _ {1-x} $ cs $ _ {x} $ v $ v $ _3 $ _3 $ sb $ sb $ _5 alloys in K $ _ {1-x} $ _ {1-x} $ cs $ _ {1-x} $ _5 $ _5 $ alloys中的增强CDW稳定性区域。我们的结果共同开放了化学扰动和探索AV $ _3 $ SB $ _5 $ KAGOME超导体的新途径。
In this work we explore the chemical-property phase diagram of the AV$_3$Sb$_5$ family through A-site alloying. We demonstrate full miscibility of the alkali-site, highlighting that the three parent compounds are the terminal ends of a single solid-solution. Using both polycrystalline and single crystal methods, we map the dependence of the two primary electronic instabilities: (1) the onset of charge density wave (CDW) order ($T_\text{CDW}$) and (2) the onset of superconductivity ($T_\text{c}$) with alkali-site composition. We show continuous trends in both $T_\text{CDW}$ and $T_\text{c}$, including a region of enhanced CDW stability in K$_{1-x}$Cs$_{x}$V$_3$Sb$_5$ alloys. Together, our results open new routes for chemical perturbation and exploration of the chemical-property relationships in the class of AV$_3$Sb$_5$ kagome superconductors.
