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

Abstract An anisotropic double exchange interaction driven giant transport anisotropy is demonstrated in a canonic double exchange system of La2/3Sr1/3MnO3 ultrathin films epitaxially grown on NdGaO3 (110) substrates. The oxygen octahedral coupling at the La2/3Sr1/3MnO3/NdGaO3 interface induces a pl...

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Autores principales:	Z. L. Liao, G. Koster, M. Huijben, G. Rijnders
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2017
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/6fb2a89a5b374771a6d62560991b254c
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spelling	oai:doaj.org-article:6fb2a89a5b374771a6d62560991b254c2021-12-02T12:32:25ZExperimental evidence for anisotropic double exchange interaction driven anisotropic transport in manganite heterostructures10.1038/s41598-017-02813-x2045-2322https://doaj.org/article/6fb2a89a5b374771a6d62560991b254c2017-06-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-02813-xhttps://doaj.org/toc/2045-2322Abstract An anisotropic double exchange interaction driven giant transport anisotropy is demonstrated in a canonic double exchange system of La2/3Sr1/3MnO3 ultrathin films epitaxially grown on NdGaO3 (110) substrates. The oxygen octahedral coupling at the La2/3Sr1/3MnO3/NdGaO3 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 La2/3Sr1/3MnO3 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.Z. L. LiaoG. KosterM. HuijbenG. RijndersNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 7, Iss 1, Pp 1-5 (2017)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Z. L. Liao G. Koster M. Huijben G. Rijnders Experimental evidence for anisotropic double exchange interaction driven anisotropic transport in manganite heterostructures
description	Abstract An anisotropic double exchange interaction driven giant transport anisotropy is demonstrated in a canonic double exchange system of La2/3Sr1/3MnO3 ultrathin films epitaxially grown on NdGaO3 (110) substrates. The oxygen octahedral coupling at the La2/3Sr1/3MnO3/NdGaO3 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 La2/3Sr1/3MnO3 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.
format	article
author	Z. L. Liao G. Koster M. Huijben G. Rijnders
author_facet	Z. L. Liao G. Koster M. Huijben G. Rijnders
author_sort	Z. L. Liao
title	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_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_sort	experimental evidence for anisotropic double exchange interaction driven anisotropic transport in manganite heterostructures
publisher	Nature Portfolio
publishDate	2017
url	https://doaj.org/article/6fb2a89a5b374771a6d62560991b254c
work_keys_str_mv	AT zlliao experimentalevidenceforanisotropicdoubleexchangeinteractiondrivenanisotropictransportinmanganiteheterostructures AT gkoster experimentalevidenceforanisotropicdoubleexchangeinteractiondrivenanisotropictransportinmanganiteheterostructures AT mhuijben experimentalevidenceforanisotropicdoubleexchangeinteractiondrivenanisotropictransportinmanganiteheterostructures AT grijnders experimentalevidenceforanisotropicdoubleexchangeinteractiondrivenanisotropictransportinmanganiteheterostructures
_version_	1718394100060782592

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

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