Dynamic electron scattering distinguishes dodecahedral and tetrahedral crystallographic sites in garnet structure
Dynamic electron scattering distinguishes dodecahedral and tetrahedral crystallographic sites in garnet structure
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动态电子散射区分石榴石结构中的十二面体和四面体晶体位点
DOI：
10.1063/1.124279
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发表时间：
1999
影响因子：
4
通讯作者：
J. Lábár
中科院分区：
文献类型：
--
作者：
J. Lábár
这封信表明，与文献中公认的信念相反，可以确定石榴石单晶中的少数组分是否位于十二面体、八面体或四面体位置。我们的这一预测是基于动态Bloch波的计算，并用透射电子显微镜中的X射线测量进行了实验验证。以前的文献似乎一致认为十二面体和四面体的位置是不可区分的。
It is shown in this letter that, in contrast to the accepted belief in the literature, it is possible to determine if a minority component is located on the dodecahedral, octahedral, or tetrahedral sites in a garnet single crystal. This prediction of ours is based on dynamical Bloch-wave calculations and proved experimentally with x-ray measurements in a transmission electron microscope. The previous literature seemed to agree on the assumption that the dodecahedral and tetrahedral sites are indistinguishable from each other.