%0 Journal Article
%T Gold Nanobelt Reorientation by Molecular Dynamics Simulation
%A ZHANG Chun-Fang
%A WEI He-Lin
%A WANG Jian
%A LIU Zu-Li
%A <br>张春芳
%A 魏合林
%A 王键
%A 刘祖黎
%J 中国物理快报
%D 2007
%I 
%X The embedded atom method is used to study the structure stabilityof gold nanobelt. The Au nanobelts have a rectangular cross-section with<100> orientation along the x-, y- and z-axes. Free surfaces are used along the x- and y-directions, and periodic boundary condition is used along z-direction. The simulation is performed at different temperatures and cross-section sizes. Our results show that the structure stability of the Au nanobelts depends on the nanobelt size, initial orientation, boundary conditions and temperature. A critical temperature exists for Au nanobelts to transform from initial <100> nanobelt to final <110> nanobelt. The mechanism of the reorientation is the slip and spread of dislocation through the nanobelt under compressive stress caused by tensile surface-stress components.
%K 31
%K 15
%K Qg
%K 61
%K 46
%K -w
%K 61
%K 72
%K Lk<br>分子动力学
%K 黄金
%K 原子核
%K 中子
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=47EA7CFDDEBB28E0&jid=E27DA92E19FE279A273627875A70D74D&aid=03664AC44D4808189E94F9EC2C71DC98&yid=A732AF04DDA03BB3&vid=B91E8C6D6FE990DB&iid=5D311CA918CA9A03&sid=D80D149F88BBF67B&eid=93AF0A1614ED1F74&journal_id=0256-307X&journal_name=中国物理快报&referenced_num=0&reference_num=0