Thermal and tensile properties of Si/Ge core-shell and superlattice nanowires

被引：0
|
作者：
Hai-jun Shen
机构：
[1] Nanjing University of Aeronautics & Astronautics,School of Aeronautics & Astronautics
来源：
Frontiers of Materials Science in China | 2009年 / 3卷
关键词：
core-shell; superlattice; Si/Ge nanowires; thermal stability; tensile properties;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
The Stillinger-Weber potential-based MD (Molecular dynamics) method is used to simulate the heating-up and axial tension of Si/Ge core-shell and superlattice nanowires; according to the simulative results, the differences in their thermal and mechanical properties are discussed. The results show the following: (1) The Si/Ge superlattice nanowire is more thermally stable than the core-shell one, and their melting points are 1160 and 1320 K, respectively. (2) The Si/Ge core-shell nanowire has higher elastic module than the super-lattice one. (3) Under tension, the super-lattice nanowire has better antideformation capability than the core-shell one but has comparative antiloading capability.
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页码：415 / 420
页数：5
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