Migration Kinetics of Surface Ions in Oxygen‐Deficient Perovskite During Topotactic Transitions (Small 51/2021)

Topotactic Transitions In article number 2104356, Lei Cao, Oleg Petracic, and co‐workers report the first observation of a novel surface phase in La0.7Sr0.3MnO3‐δ epitaxial thin films during the topotactic transition from perovskite to brownmillerite. Given the anisotropic vacancy channels found in...

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Published in:Small (Weinheim an der Bergstrasse, Germany) Germany), 2021-12, Vol.17 (51), p.n/a
Main Authors: Cao, Lei, Petracic, Oleg, Wei, Xian‐Kui, Zhang, Hengbo, Duchoň, Tomáš, Gunkel, Felix, Koutsioubas, Alexandros, Zhernenkov, Kirill, Rushchanskii, Konstantin Z., Hartmann, Heinrich, Wilhelm, Marek, Li, Zichao, Xie, Yufang, He, Suqin, Weber, Moritz L., Veltruská, Kateřina, Stellhorn, Annika, Mayer, Joachim, Zhou, Shengqiang, Brückel, Thomas
Format: Article
Language:English
Subjects:
Brownmillerite
Calcium aluminum ferrite
defect chemistry
Nanotechnology
oxygen vacancy ordering
Perovskites
polarized neutron reflectometry
Thin films
topotactic transition
X‐ray absorption
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Summary:Topotactic Transitions In article number 2104356, Lei Cao, Oleg Petracic, and co‐workers report the first observation of a novel surface phase in La0.7Sr0.3MnO3‐δ epitaxial thin films during the topotactic transition from perovskite to brownmillerite. Given the anisotropic vacancy channels found in the surface phase, the studies not only provide a deeper understanding of oxygen‐transport behavior in oxides, but also offer optimal guidance to engineer coordination polyhedra towards desired properties.
ISSN:1613-6810
1613-6829
DOI:10.1002/smll.202170269