Distinguishing space groups by electron channelling: centrosymmetric full-Heusler or non-centrosymmetric half-Heusler?
Peer reviewed, Journal article
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https://hdl.handle.net/11250/3041630Utgivelsesdato
2020Metadata
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Originalversjon
Hansen, V., Kosinskiy, A., & Taftø, J. (2020). Distinguishing space groups by electron channelling: centrosymmetric full-Heusler or non-centrosymmetric half-Heusler?. Acta Crystallographica Section A: Foundations and Advances, 76(2), 211-213. 10.1107/S2053273319016942Sammendrag
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.