首页 | 本学科首页   官方微博 | 高级检索  
     检索      


Decay characteristics of surface mounds with contrasting interlayer mass transport channels
Authors:Li M  Wendelken J F  Liu B G  Wang E G  Zhang Z
Institution:Institute of Physics & Center of Condensed Matter Physics, Chinese Academy of Sciences, Beijing, People's Republic of China.
Abstract:The decay characteristics of three-dimensional (3D) islands formed on surfaces are investigated theoretically considering two types of interlayer mass transport mechanisms. If an adatom on a given layer can easily descend from any site along the periphery of the layer, an optimal island slope and a constant terrace width will be selected during the decay. In contrast, if the adatom can descend primarily through selective (such as kinked) sites, the decay will be accompanied by a gradual increase in the island slope. These generic conclusions provide the basis for a microscopic understanding of the decay of nanostructures in fcc(111) and fcc(100) metal homoepitaxy and are applicable to other systems as well.
Keywords:
本文献已被 PubMed 等数据库收录!
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号