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Distinguishing space groups by electron channelling: centrosymmetric full-Heusler or non-centrosymmetric half-Heusler?
Acta Crystallographica Section A: Foundations and Advances ( IF 1.9 ) Pub Date : 2020-02-19 , DOI: 10.1107/s2053273319016942
Vidar Hansen 1 , Andrey Kosinskiy 2 , Johan Taftø 2
Affiliation  

X-ray emission under electron-channelling conditions is used to distinguish between a non-centrosymmetric half-Heusler and a centrosymmetric full-Heusler crystal. For TiCo1.5+xSn the space-group determination based on a Rietveld refinement procedure became challenging for increasing Co content (x > 0.2), while electron channelling proved successful for higher Co content (x = 0.35). This technique can be used on crystals as small as (10 nm)3.

中文翻译:

通过电子通道区分空间群:中心对称全赫斯勒或非中心对称半赫斯勒?

电子通道化条件下的X射线发射用于区分非中心对称的半霍斯勒晶体和中心对称的全霍斯勒晶体。对于TiCo1.5 + xSn,基于Rietveld精炼程序的空间基团测定对于增加Co含量(x> 0.2)变得具有挑战性,而对于高Co含量(x = 0.35),电子通道被证明是成功的。该技术可用于最小(10 nm)3的晶体。
更新日期:2020-02-19
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