报告摘要：

Strain engineering has been developed as a well-established approach to enhance the performance of electronic devices, a key to the modern CMOS technology. On the other hand, strain engineering has been a continuously self-reviving approach employed in a wide range of research areas. In this talk, I will first review some of our “old” works on strain induced self-assembly of nanostructures in heteroepitaxial growth of thin films, in particular through strain partitioned nanomechanical architecture, and on strain engineered electronic properties of 2D materials. Then I will introduce our latest “new” study of strain engineering of spins via mechanical bending of a topological nanofilm, which we named “topological nanomechanical architectiure”. This novel approach affords a promising route towards realization of robust spin injectors with 100% spin polarization and large spin current density.

报告人简介：

　　刘锋，材料物理学家，美国犹他大学材料系终身教授、系主任，美国物理学会会士(APS Fellow)，物理评论快报编辑(PRL Divisional Associate Editor)。曾获德国洪堡高级研究奖，澳大利亚国际教授奖，中国基金委海外杰青奖等。刘锋教授主要从事应变薄膜纳米自主装，石墨烯，拓扑材料的基础和应用研究。已发表200多篇学术论文。另外，刘锋教授还是10多项专利的发明人。2011年，刘锋教授的团队发明了纳烯(Nanoxene)复合材料并创办了Life-E公司，目前正在开拓纳烯材料技术在电热产品中的应用。