论文标题
Cutic $ d^1 $双perovskites中的振动订单和新兴磁性
Vibronic order and emergent magnetism in cubic $d^1$ double perovskites
论文作者
论文摘要
材料中不同相互作用的协同相互作用导致新型量子现象的出现。旋转轨道和振动耦合通常相互抵消，但是，在立方$ d^1 $双perovskites中，它们共存，并引起自旋轨道晶体纠缠，并在金属位点具有未震动的动态jahn-teller效应。到目前为止，尚未评估这些由间相互作用引起的这些纠缠状态的相关性。在这里，我们研究了自旋 - 轨道和振动相互作用对$ d^1 $双perovskites中有序相的形成的关节合作效应。我们发现，这些系统中的磁有序状态与动态振动顺序共存，其特征在于位点上振动四极矩的顺序。这种处理允许合理化实验研究阶段的许多无法解释的特征。
The synergistic interplay of different interactions in materials leads to the emergence of novel quantum phenomena. Spin-orbit and vibronic couplings usually counteract each other, however, in cubic $d^1$ double perovskites they coexist and give rise to spin-orbit-lattice entanglement with unquenched dynamic Jahn-Teller effect on the metal sites. The correlation of these entangled states induced by intersite interactions was not assessed so far. Here, we investigate the joint cooperative effect of spin-orbit and vibronic interactions on the formation of the ordered phases in $d^1$ double perovskites. We found that the magnetic ordered states in these systems coexist with a dynamic vibronic order characterized by the ordering of vibronic quadrupole moments on sites. This treatment allows the rationalization of a number of unexplained features of experimentally investigated phases.
