Daniels, Luke M, Kashtiban, Reza J, Kepaptsoglou, Demie orcid.org/0000-0003-0499-0470 et al. (3 more authors) (2016) Local A-Site Layering in Rare-Earth Orthochromite Perovskites by Solution Synthesis. Chemistry : A European Journal. pp. 18362-18367. ISSN 1521-3765
Abstract
Cation size effects were examined in the mixed A-site perovskites La0.5 Sm0.5 CrO3 and La0.5 Tb0.5 CrO3 prepared through both hydrothermal and solid-state methods. Atomically resolved electron energy loss spectroscopy (EELS) in the transmission electron microscope shows that while the La and Sm cations are randomly distributed, increased cation-radius variance in La0.5 Tb0.5 CrO3 results in regions of localised La and Tb layers, an atomic arrangement exclusive to the hydrothermally prepared material. Solid-state preparation gives lower homogeneity resulting in separate nanoscale regions rich in La3+ and Tb3+ . The A-site layering in hydrothermal La0.5 Tb0.5 CrO3 is randomised upon annealing at high temperature, resulting in magnetic behaviour that is dependent on synthesis route.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © 2016 The Authors. Published by Wiley-VCH Verlag GmbH & Co. KGaA. |
Keywords: | Journal Article |
Dates: |
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Institution: | The University of York |
Academic Units: | The University of York > Faculty of Sciences (York) > Physics (York) The University of York > Faculty of Sciences (York) > Biology (York) |
Depositing User: | Pure (York) |
Date Deposited: | 18 Dec 2017 15:00 |
Last Modified: | 01 Dec 2024 01:10 |
Published Version: | https://doi.org/10.1002/chem.201604766 |
Status: | Published online |
Refereed: | Yes |
Identification Number: | 10.1002/chem.201604766 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:125393 |
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