标题： 遍历尖晶石稳定图；微波辅助合成和混合B位Ln$_2$InSbO$_7$系列的发现 显示英文标题

标题： Traversing the pyrochlore stability diagram; microwave-assisted synthesis and discovery of mixed B-site Ln$_2$InSbO$_7$ family

摘要： 稀土焦绿石氧化物Ln$_2$B$_2$O$_7$是凝聚态物理中最深入研究的材料类别之一，作为挫败磁性的支柱之一而牢固确立。 焦绿石的广泛化学多样性，加上其固有的几何挫败，使得实现各种奇特和复杂的磁性基态成为可能。 因此，新焦绿石成分的发现一直是持续推动该领域向激动人心方向发展的主题。 最近对混合B位焦绿石的关注提供了一条独特途径，可以在保持名义上纯净的磁性亚晶格的同时，调节局部配位化学和立体效应。 在此，我们对焦绿石稳定区域进行了全面概述，将最近在混合B位系统中的合成努力与历史上确立的Ln$_2$B$_2$O$_7$系列结合起来。 同时，我们介绍了使用快速的混合机械化学/微波辅助合成技术，在尖晶石稳定区边界附近发现并合成了整个Ln$_2$InSbO$_7$系列（Ln：La，Pr，Nd，Sm，Eu，Gd，Tb，Dy，Ho，Er，Tm，Yb，Lu）。 对整个化合物系列的磁性表征与锡酸盐类似物有显著相似之处，这表明这些化合物可能拥有多种奇特的磁性基态。 显示英文摘要

摘要： The lanthanide pyrochlore oxides Ln$_2$B$_2$O$_7$ are one of the most intensely studied classes of materials within condensed matter physics, firmly centered as one of the pillars of frustrated magnetism. The extensive chemical diversity of the pyrochlores, coupled with their innate geometric frustration, enables realization of a wide array of exotic and complex magnetic ground states. Thus, the discovery of new pyrochlore compositions has been a persistent theme that continues to drive the field in exciting directions. The recent focus on the mixed B-site pyrochlores offers a unique route towards tuning both local coordination chemistry and sterics, while maintaining a nominally pristine magnetic sublattice. Here, we present a broad overview of the pyrochlore stability field, integrating recent synthetic efforts in mixed B-site systems with the historically established Ln$_2$B$_2$O$_7$ families. In parallel, we present the discovery and synthesis of the entire Ln$_2$InSbO$_7$ family (Ln: La, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu) located near the boundary of the pyrochlore stability field using a rapid, hybrid mechanicochemical/microwave-assisted synthesis technique. Magnetic characterization on the entire class of compounds draws striking parallels to the stannate analogs, suggesting that these compounds may host a breadth of exotic magnetic ground states.