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Thickness-Dependent Perovskite Octahedral Distortions at Heterointerfaces
[Image: see text] In this study, we analyze how the octahedral tilts and rotations of thin films of LaNiO(3) and LaAlO(3) grown on different substrates, determined using synchrotron X-ray diffraction-measured half-integer Bragg peaks, depend upon the total film thickness. We find a striking differen...
Autores principales: | , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
American Chemical Society
2019
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Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6595436/ https://www.ncbi.nlm.nih.gov/pubmed/31117765 http://dx.doi.org/10.1021/acs.nanolett.9b01772 |
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author | Fowlie, Jennifer Lichtensteiger, Céline Gibert, Marta Meley, Hugo Willmott, Philip Triscone, Jean-Marc |
author_facet | Fowlie, Jennifer Lichtensteiger, Céline Gibert, Marta Meley, Hugo Willmott, Philip Triscone, Jean-Marc |
author_sort | Fowlie, Jennifer |
collection | PubMed |
description | [Image: see text] In this study, we analyze how the octahedral tilts and rotations of thin films of LaNiO(3) and LaAlO(3) grown on different substrates, determined using synchrotron X-ray diffraction-measured half-integer Bragg peaks, depend upon the total film thickness. We find a striking difference between films grown on SrTiO(3) and LaAlO(3) substrates which appears to stem not only from the difference in epitaxial strain state but also from the level of continuity at the heterointerface. In particular, the chemically and structurally discontinuous LaNiO(3)/SrTiO(3) and LaAlO(3)/SrTiO(3) interfaces cause a large variation in the octahedral network as a function of film thickness whereas the rather continuous LaNiO(3)/LaAlO(3) interface seems to allow from just a few unit cells the formation of a stable octahedral pattern corresponding to that expected only given the applied biaxial strain. |
format | Online Article Text |
id | pubmed-6595436 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2019 |
publisher | American Chemical Society |
record_format | MEDLINE/PubMed |
spelling | pubmed-65954362019-07-01 Thickness-Dependent Perovskite Octahedral Distortions at Heterointerfaces Fowlie, Jennifer Lichtensteiger, Céline Gibert, Marta Meley, Hugo Willmott, Philip Triscone, Jean-Marc Nano Lett [Image: see text] In this study, we analyze how the octahedral tilts and rotations of thin films of LaNiO(3) and LaAlO(3) grown on different substrates, determined using synchrotron X-ray diffraction-measured half-integer Bragg peaks, depend upon the total film thickness. We find a striking difference between films grown on SrTiO(3) and LaAlO(3) substrates which appears to stem not only from the difference in epitaxial strain state but also from the level of continuity at the heterointerface. In particular, the chemically and structurally discontinuous LaNiO(3)/SrTiO(3) and LaAlO(3)/SrTiO(3) interfaces cause a large variation in the octahedral network as a function of film thickness whereas the rather continuous LaNiO(3)/LaAlO(3) interface seems to allow from just a few unit cells the formation of a stable octahedral pattern corresponding to that expected only given the applied biaxial strain. American Chemical Society 2019-05-22 2019-06-12 /pmc/articles/PMC6595436/ /pubmed/31117765 http://dx.doi.org/10.1021/acs.nanolett.9b01772 Text en Copyright © 2019 American Chemical Society This is an open access article published under an ACS AuthorChoice License (http://pubs.acs.org/page/policy/authorchoice_termsofuse.html) , which permits copying and redistribution of the article or any adaptations for non-commercial purposes. |
spellingShingle | Fowlie, Jennifer Lichtensteiger, Céline Gibert, Marta Meley, Hugo Willmott, Philip Triscone, Jean-Marc Thickness-Dependent Perovskite Octahedral Distortions at Heterointerfaces |
title | Thickness-Dependent Perovskite Octahedral Distortions
at Heterointerfaces |
title_full | Thickness-Dependent Perovskite Octahedral Distortions
at Heterointerfaces |
title_fullStr | Thickness-Dependent Perovskite Octahedral Distortions
at Heterointerfaces |
title_full_unstemmed | Thickness-Dependent Perovskite Octahedral Distortions
at Heterointerfaces |
title_short | Thickness-Dependent Perovskite Octahedral Distortions
at Heterointerfaces |
title_sort | thickness-dependent perovskite octahedral distortions
at heterointerfaces |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6595436/ https://www.ncbi.nlm.nih.gov/pubmed/31117765 http://dx.doi.org/10.1021/acs.nanolett.9b01772 |
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