Photoelectron holography characterization of protonated brownmillerite SrCoO2.5 epitaxial films
Source abstract
Abstract
We characterized protonated SrCoO 2.5 epitaxial films by the photoelectron holography technique.We found that photoelectron holography patterns change due to cation displacements induced by electrochemical protonation.By simulating holography patterns based on structural models of the protonated SrCoO 2.5 using machine-learning enhanced global optimization and comparing them with the experimentally observed patterns, we evaluated hydrogen concentration and cation displacements in protonated SrCoO 2.5 films.Our results show that photoelectron holography is useful in characterizing protonation-induced changes in metal transition oxides.
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Research context
OpenAlex topics: X-ray Diffraction in Crystallography · Electron and X-Ray Spectroscopy Techniques · Magnetic and transport properties of perovskites and related materials
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Institute for Chemical Research, Kyoto University
Graduate School of Science and Technology, Nara Institute of Science and Technology
Department of Precision Engineering, Graduate School of Engineering, The University of Osaka
Faculty of Engineering – Technology and Environment, An Giang University (AGU)
Climate Change Institute, AGU
Vietnam National University
Research Center for Precision Engineering, Graduate School of Engineering, The University of Osaka
Innovative Catalysis Science Division, Institute for Open and Transdisciplinary Research Initiatives (ICS-OTRI), The University of Osaka
Nanotechnology Program, Faculty of Advanced Technology and Engineering, Vietnam Japan University, Vietnam National University
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