功能稀土配合物的表面制备和自旋态检测

Single-molecule magnets have great potential in high-density information storage, spintronics and quantum computing. The research of their magnetic properties on surfaces are of fundamental importance for constructing molecular spintronic devices. The mononuclear and multinuclear rare-earth complexes will be prepared via the coordination of rare-earth metals with organic molecules by on-surface synthesis in ultra-high vacuum. We will also prepare ordered structures on noble metal surfaces and insulating substrates. Detection of the spin states of complexes and measurement of their hysteresis curves will be accessible with scanning tunneling microscopy (STM). The magnetic interaction between rare-earth ions will be systemically investigated. The ultimate goal is to detect and manipulate the spin states of rare-earth complexes in ordered arrays.

单分子磁体在超高密度信息存储、自旋电子学、量子计算等领域具有巨大的应用潜力，其在表面的磁性研究是自旋电子学器件应用的重要前提。本项目将通过超高真空表面在位合成的方法，利用稀土金属与有机分子的配位作用，制备单核稀土配合物和多核稀土配合物，并在各种单晶衬底及绝缘层表面制备有序薄膜结构，利用扫描隧道显微镜实现配合物自旋态的检测和磁滞曲线测量，并研究配合物中稀土离子之间的磁相互作用，最终实现对有序阵列中稀土配合物自旋态的选择性可逆可控调控。

单分子磁体在超高密度信息存储、自旋电子学、量子计算等领域具有巨大的应用潜力，其在表面的磁性研究是自旋电子学器件应用的重要前提。本项目通过超高真空表面在位合成的方法，利用稀土金属与有机分子的配位作用，并在各种单晶衬底制备有序薄膜结构，得到了单核和多核稀土Ce-Au合金配位、Dy-Au合金配位的有序薄膜结构，实现了分形中配位金属自旋性质的检测与调控。