Experimental evidence for anisotropic double exchange interaction driven anisotropic transport in manganite heterostructures

An anisotropic double exchange interaction driven giant transport anisotropy is demonstrated in a canonic double exchange system of La(2/3)Sr(1/3)MnO(3) ultrathin films epitaxially grown on NdGaO(3) (110) substrates. The oxygen octahedral coupling at the La(2/3)Sr(1/3)MnO(3)/NdGaO(3) interface induc...

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Detalles Bibliográficos
Autores principales: Liao, Z. L., Koster, G., Huijben, M., Rijnders, G.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2017
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5453938/
https://www.ncbi.nlm.nih.gov/pubmed/28572605
http://dx.doi.org/10.1038/s41598-017-02813-x
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author Liao, Z. L.
Koster, G.
Huijben, M.
Rijnders, G.
author_facet Liao, Z. L.
Koster, G.
Huijben, M.
Rijnders, G.
author_sort Liao, Z. L.
collection PubMed
description An anisotropic double exchange interaction driven giant transport anisotropy is demonstrated in a canonic double exchange system of La(2/3)Sr(1/3)MnO(3) ultrathin films epitaxially grown on NdGaO(3) (110) substrates. The oxygen octahedral coupling at the La(2/3)Sr(1/3)MnO(3)/NdGaO(3) interface induces a planar anisotropic Mn-O-Mn bond bending, which causes a significant anisotropic overlap of neighboring Mn orbitals. Due to the anisotropic double exchange interaction, it is found that the conductivity of the La(2/3)Sr(1/3)MnO(3) film is enhanced when current is applied along the in-plane short crystalline axis. However, the anisotropic behavior is absent in the high temperature paramagnetic phase. Our results demonstrate anisotropic transport in the clean limit where phase separation is absent and the role of anisotropic phase percolation can be excluded.
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spelling pubmed-54539382017-06-02 Experimental evidence for anisotropic double exchange interaction driven anisotropic transport in manganite heterostructures Liao, Z. L. Koster, G. Huijben, M. Rijnders, G. Sci Rep Article An anisotropic double exchange interaction driven giant transport anisotropy is demonstrated in a canonic double exchange system of La(2/3)Sr(1/3)MnO(3) ultrathin films epitaxially grown on NdGaO(3) (110) substrates. The oxygen octahedral coupling at the La(2/3)Sr(1/3)MnO(3)/NdGaO(3) interface induces a planar anisotropic Mn-O-Mn bond bending, which causes a significant anisotropic overlap of neighboring Mn orbitals. Due to the anisotropic double exchange interaction, it is found that the conductivity of the La(2/3)Sr(1/3)MnO(3) film is enhanced when current is applied along the in-plane short crystalline axis. However, the anisotropic behavior is absent in the high temperature paramagnetic phase. Our results demonstrate anisotropic transport in the clean limit where phase separation is absent and the role of anisotropic phase percolation can be excluded. Nature Publishing Group UK 2017-06-01 /pmc/articles/PMC5453938/ /pubmed/28572605 http://dx.doi.org/10.1038/s41598-017-02813-x Text en © The Author(s) 2017 Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.
spellingShingle Article
Liao, Z. L.
Koster, G.
Huijben, M.
Rijnders, G.
Experimental evidence for anisotropic double exchange interaction driven anisotropic transport in manganite heterostructures
title Experimental evidence for anisotropic double exchange interaction driven anisotropic transport in manganite heterostructures
title_full Experimental evidence for anisotropic double exchange interaction driven anisotropic transport in manganite heterostructures
title_fullStr Experimental evidence for anisotropic double exchange interaction driven anisotropic transport in manganite heterostructures
title_full_unstemmed Experimental evidence for anisotropic double exchange interaction driven anisotropic transport in manganite heterostructures
title_short Experimental evidence for anisotropic double exchange interaction driven anisotropic transport in manganite heterostructures
title_sort experimental evidence for anisotropic double exchange interaction driven anisotropic transport in manganite heterostructures
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5453938/
https://www.ncbi.nlm.nih.gov/pubmed/28572605
http://dx.doi.org/10.1038/s41598-017-02813-x
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