论文标题
在定期驱动的磁性材料中控制配体介导的交换相互作用
Controlling ligand-mediated exchange interactions in periodically driven magnetic materials
论文作者
论文摘要
周期性驱动可以改变磁性材料中的有效交换相互作用。在这里，我们探讨了交换途径如何影响定期驱动的磁性材料的有效相互作用。旨在将Floquet工程方法应用于二维磁性材料，我们考虑了现实的模型，并讨论了周期性驱动器对配体介导的交换相互作用的影响。我们表明，取决于键角和交换过程中涉及的配体离子的数量，驱动诱导的变化可能与从前面考虑的直接跳跃模型中计算出的变化可能大不相同。我们研究了这些作用，发现必须考虑配体离子的存在，尤其是对于TMTC，配体离子介导的下一个邻居相互作用在确定系统的磁接地状态中起着至关重要的作用。
A periodic drive could alter the effective exchange interactions in magnetic materials. Here, we explore how exchange pathways affect the effective interactions of periodically driven magnetic materials. Aiming to apply Floquet engineering methods to two-dimensional magnetic materials, we consider realistic models and discuss the effect of a periodic drive on ligand-mediated exchange interactions. We show that depending on bond angles and the number of ligand ions involved in the exchange process, drive-induced changes can be very different from those calculated from direct-hopping models considered earlier. We study these effects and find that the presence of ligand ions must be taken into account, especially for TMTCs where ligand ion mediated next-neighbor interactions play a crucial role in determining the magnetic ground state of the system.
