Universal symmetry property of point defects in crystals

被引:164
作者
Ren, XB [1 ]
Otsuka, K [1 ]
机构
[1] Univ Tsukuba, Inst Mat Sci, Tsukuba, Ibaraki 3058573, Japan
关键词
D O I
10.1103/PhysRevLett.85.1016
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
Point defects (vacancies, solute atoms, and disorder) are ubiquitous in crystalline solids. With in situ transmission electron microscopy we find clear evidence for the existence of a universal symmetry property of point defects i.e., the symmetry of short-range order of point defects follows the crystal symmetry when in equilibrium. We further show that this symmetry-conforming property can lead to various interesting effects including "aging-induced microstructure memory" and the associated "time-dependent two-way shape memory."
引用
收藏
页码:1016 / 1019
页数:4
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