在二维表面自组装结构中实现磁或其它序参量的有序化对新型量子器件的研制具有特别重大的意义。本研究针对自组装体系中弱相互作用在理解和调控上面临的困难，以实现自组装二维磁有序网格结构为目标，以基于密度泛函理论的第一性原理计算和自旋极化扫描隧道显微镜（SP-STM）实验研究为基础，深入研究不同表面衬底对吸附分子的弱作用规律，以及吸附分子之间的弱相互作用及其对分子间磁协同作用的影响，结合自组装体系的磁输运及光电性质的研究，揭示通过调控弱键作用大小对自组装结构物性的调控途径，为实现按功能需要设计、构筑自组装体系打下基础。

It is very important to fabricate self assembled two dimensional magnetic molecular networks on surfaces for the development of new concept quantum devices. The proposed research is aiming at the difficulty of describing weak interactions between surface and molecules and that among molecules in order to build up magnetic ordering in the surface based self assembled structures. The research is based on the combination of the state of art first principles calculations and spin-polarized Scanning Tunneling Microscope studies. We will study the weak interactions between the substrate and the adsobed molecules and among the adsorbed molecules and the effect of the weak bonding on the magnetic property of the structures. Our aim is to find the method to effectively design and fabricate the required self assembled magnetic structures on the surfaces.