Point-group sensitive orientation mapping of non-centrosymmetric crystals
Point-group sensitive orientation mapping of non-centrosymmetric crystals
复制标题
非中心对称晶体的点群敏感取向映射
DOI：
10.1063/1.4907938
复制
发表时间：
2015
影响因子：
4
通讯作者：
G. Nolze
中科院分区：
文献类型：
--
作者：
A. Winkelmann;G. Nolze
我们用电子背散射衍射(EBSD)演示了非中心对称相的极性敏感取向图。该方法克服了EBSD确定运动学方位的局限性，根据Friedel规则，该方法仅限于中心对称的Laue群。以多晶GaP为例，我们应用了一种基于电子衍射动力学理论模拟的定量图形匹配方法。这一过程导致根据所研究的晶体结构的非中心对称点群对局部取向进行明显的指定。
We demonstrate polarity-sensitive orientation mapping of non-centrosymmetric phases by Electron Backscatter Diffraction (EBSD). The method overcomes the restrictions of kinematic orientation determination by EBSD, which is limited to the centro-symmetric Laue-groups according to Friedel's rule. Using polycrystalline GaP as an example, we apply a quantitative pattern matching approach based on simulations using the dynamical theory of electron diffraction. This procedure results in a distinct assignment of the local orientation according to the non-centrosymmetric point group of the crystal structure under investigation.
影响因子：
1.5
作者：
Nolze, G.;Winkelmann, A.
通讯作者：
Winkelmann, A.