Volume 17, Issue 51 2170269
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Migration Kinetics of Surface Ions in Oxygen-Deficient Perovskite During Topotactic Transitions (Small 51/2021)

Lei Cao

Lei Cao

School of Advanced Materials, Peking University, Shenzhen Graduate School, Shenzhen, 518055 China

Institute of Ion Beam Physics and Materials Research, Helmholtz-Zentrum Dresden-Rossendorf, 01328 Dresden, Germany

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Oleg Petracic

Oleg Petracic

Jülich Centre for Neutron Science (JCNS-2) and Peter Grünberg Institut (PGI-4), JARA-FIT, Forschungszentrum Jülich GmbH, 52425 Jülich, Germany

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Xian-Kui Wei

Xian-Kui Wei

Ernst Ruska-Centre for Microscopy and Spectroscopy with Electrons, Forschungszentrum Jülich GmbH, 52425 Jülich, Germany

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Hengbo Zhang

Hengbo Zhang

Jülich Centre for Neutron Science (JCNS-2) and Peter Grünberg Institut (PGI-4), JARA-FIT, Forschungszentrum Jülich GmbH, 52425 Jülich, Germany

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Tomáš Duchoň

Tomáš Duchoň

Peter Grünberg Institut (PGI-6), JARA-FIT, Forschungszentrum Jülich GmbH, 52425 Jülich, Germany

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Felix Gunkel

Felix Gunkel

Peter Grünberg Institut (PGI-7), JARA-FIT, Forschungszentrum Jülich GmbH, 52425 Jülich, Germany

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Alexandros Koutsioubas

Alexandros Koutsioubas

Jülich Centre for Neutron Science (JCNS) at Heinz Maier-Leibnitz Zentrum (MLZ), Forschungszentrum Jülich GmbH, 85748 Garching, Germany

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Kirill Zhernenkov

Kirill Zhernenkov

Jülich Centre for Neutron Science (JCNS) at Heinz Maier-Leibnitz Zentrum (MLZ), Forschungszentrum Jülich GmbH, 85748 Garching, Germany

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Konstantin Z. Rushchanskii

Konstantin Z. Rushchanskii

Peter Grünberg Institute (PGI-1) and Institute for Advanced Simulation (IAS-1), Forschungszentrum Jülich GmbH, 52425 Jülich, Germany

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Heinrich Hartmann

Heinrich Hartmann

Central Institute for Engineering, Electronics and Analytics (ZEA-3), 52425 Jülich, Germany

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Marek Wilhelm

Marek Wilhelm

Peter Grünberg Institut (PGI-6), JARA-FIT, Forschungszentrum Jülich GmbH, 52425 Jülich, Germany

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Zichao Li

Zichao Li

Institute of Ion Beam Physics and Materials Research, Helmholtz-Zentrum Dresden-Rossendorf, 01328 Dresden, Germany

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Yufang Xie

Yufang Xie

School of Advanced Materials, Peking University, Shenzhen Graduate School, Shenzhen, 518055 China

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Suqin He

Suqin He

Jülich Centre for Neutron Science (JCNS-2) and Peter Grünberg Institut (PGI-4), JARA-FIT, Forschungszentrum Jülich GmbH, 52425 Jülich, Germany

Peter Grünberg Institut (PGI-7), JARA-FIT, Forschungszentrum Jülich GmbH, 52425 Jülich, Germany

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Moritz L. Weber

Moritz L. Weber

Peter Grünberg Institut (PGI-7), JARA-FIT, Forschungszentrum Jülich GmbH, 52425 Jülich, Germany

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Kateřina Veltruská

Kateřina Veltruská

Department of Surface and Plasma Science, Faculty of Mathematics and Physics, Charles University, Prague, 18000 Czech Republic

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Annika Stellhorn

Annika Stellhorn

Jülich Centre for Neutron Science (JCNS-2) and Peter Grünberg Institut (PGI-4), JARA-FIT, Forschungszentrum Jülich GmbH, 52425 Jülich, Germany

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Joachim Mayer

Joachim Mayer

Ernst Ruska-Centre for Microscopy and Spectroscopy with Electrons, Forschungszentrum Jülich GmbH, 52425 Jülich, Germany

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Shengqiang Zhou

Shengqiang Zhou

Institute of Ion Beam Physics and Materials Research, Helmholtz-Zentrum Dresden-Rossendorf, 01328 Dresden, Germany

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Thomas Brückel

Thomas Brückel

Jülich Centre for Neutron Science (JCNS-2) and Peter Grünberg Institut (PGI-4), JARA-FIT, Forschungszentrum Jülich GmbH, 52425 Jülich, Germany

Jülich Centre for Neutron Science (JCNS) at Heinz Maier-Leibnitz Zentrum (MLZ), Forschungszentrum Jülich GmbH, 85748 Garching, Germany

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First published: 23 December 2021

Graphical Abstract

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.

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