Application of new magnetism produced by low dimentional materials to realize ultra high density recording media

该研究小组一直致力于建立一个国际合作，以实现基于第一原理模拟的磁性团簇的新材料开发。特别地，其目的在于通过使用三维沉积的磁性团簇来实现超高密度记录介质。在三年的研究期间，我们对二元团簇进行了广泛的研究，并成功地发现了新的物理性质。其中，金属包裹的10-20个原子的硅团簇引起了人们的广泛关注，并被命名为硅富勒烯。其中一些非常稳定，并具有磁矩。我们对分子电子学器件的电导性质进行了第一性原理模拟，为未来的自旋电子学奠定了基础。为了实现超高密度磁记录介质，了解沉积过程是最基本的。为了达到这个目的，我们进行了Monte Carlo模拟，推导出了实验的最佳条件和几个物理性质。在三年的时间里，来自中国的研究人员访问了我们的研究所，并使用我们的超级计算机进行了大规模的模拟。我们还访问了中国，交流思想，并成功地建立了一个国际研究团队。在国际高水平期刊上发表论文26篇。

This research group has been working to establish an international collaboration to realize new materials development based on the magnetic clusters using the first principles simulations. Especially, it aims to realize an ultra high density recording media by using three dimensionally deposited magnetic clusters. In the three year research period, we have investigated widely the binary clusters and have been successful to found out new physical properties. Among them, metal encapsulated silicon clusters with 10-20 atoms have attracted much attention, and are named as silicon fullerenes. Some of them are very stable and have magnetic moments. We have performed the first principles simulation for conductance properties of molecular electronics devices and established a basis for the future spintronics. To realize the ultra high density magnetic recording media, it is fundamental to understand the process of deposition. To do this aim, we have performed a Monte Carlo simulation and deduce the best condition for the experiment and several physical properties.In the three year period, researchers from China visited our Institute and performed a large scale simulation by using our supercomputer. We have also visited China to exchange ideas and successful to establish an international research team. We have published 26 papers in international high level journals.