STEM Structural Investigation of RE‐Au‐Si 1/1 Approximants

Abstract RE‐Au‐Si (RE=Ho, Tb) systems are 1/1 Tsai‐type quasicrystalline approximants with a cluster center decoration that can vary from a disordered tetrahedron to a rare‐earth atom. The local atomic structure of three different samples was observed by scanning transmission electron microscopy and...

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Bibliographic Details
Published in:	Israel journal of chemistry 2023-11
Main Authors:	Bajoun Mbajoun, Wilfried, Sršan, Vinko, Huang, Yu‐Chin, Gebresenbut, Girma Hailu, Pay Gómez, Cesar, Migot‐Choux, Sylvie, Ghanbaja, Jaafar, Šturm, Sašo, Fournée, Vincent, Ledieu, Julian
Format:	Article
Language:	eng
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Summary:	Abstract RE‐Au‐Si (RE=Ho, Tb) systems are 1/1 Tsai‐type quasicrystalline approximants with a cluster center decoration that can vary from a disordered tetrahedron to a rare‐earth atom. The local atomic structure of three different samples was observed by scanning transmission electron microscopy and interpreted in the light of high‐angle annular dark field simulated scanning transmission electron microscopy images. It is found that the combination of these two methods allows to identify differences in the chemical decoration of the cluster centers through quantitative analysis of line profiles.
ISSN:	0021-2148 1869-5868