Prof. Feng Liu
Department of Materials Science & Engineering, University of Utah, USA
地点：唐仲英楼B501
时间：2016-04-28 10:00
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.
刘锋，材料物理学家、美国犹他大学材料系系主任、清华大学千人计划特聘教授、美国物理学会会士（American Physical Society Fellow）、世界最著名的物理学期刊《物理评论快报》编辑 （Divisional Associate Editor, Physical Review Letters），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、中科院海外知名学者奖、及美国能源部材料和工程物理研究奖。刘锋教授研究领域包括纳米结构理论、纳米材料和器件、表面与界面和薄膜生长机制及计算材料物理等，是有机拓扑材料的发明人，也是应变引导的纳米结构自主装和纳米力学构筑领域的主要开拓者之一。刘峰教授已发表研究论文200多篇、丛书8章、特邀综述论文18篇、并已在世界各地做过特邀学术报告200多场。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。