Polar Spinel-Perovskite Interfaces: an atomistic study of Fe3O4(111)/SrTiO3(111) structure and functionality

Abstract

Atomic resolution scanning transmission electron microscopy and electron energy loss spectroscopy combined with ab initio electronic calculations are used to determine the structure and properties of the Fe3O4(111)/SrTiO3(111) polar interface. The interfacial structure and chemical composition are shown to be atomically sharp and of an octahedral Fe/SrO3 nature. Band alignment across the interface pins the Fermi level in the vicinity of the conduction band of SrTiO3. Density functional theory calculations demonstrate very high spin-polarization of Fe3O4 in the interface vicinity which suggests that this system may be an excellent candidate for spintronic applications.

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Item Type:	Article
Authors/Creators:	Gilks, D McKenna, KP Nedelkoski, Z Kuerbanjiang, B Matsuzaki, K Susaki, T Lari, L Kepaptsoglou, D Ramasse, Q https://orcid.org/0000-0001-7466-2283 Tear, S Lazarov, VK
Copyright, Publisher and Additional Information:	This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/
Dates:	Published: 14 July 2016 Published (online): 14 July 2016 Accepted: 21 June 2016
Institution:	The University of Leeds
Academic Units:	The University of Leeds > Faculty of Engineering & Physical Sciences (Leeds) > School of Chemical & Process Engineering (Leeds)
Depositing User:	Symplectic Publications
Date Deposited:	02 Feb 2018 11:43
Last Modified:	02 Feb 2018 11:43
Status:	Published
Publisher:	Nature Publishing Group
Identification Number:	10.1038/srep29724
Open Archives Initiative ID (OAI ID):	oai:eprints.whiterose.ac.uk:126898

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Polar Spinel-Perovskite Interfaces: an atomistic study of Fe3O4(111)/SrTiO3(111) structure and functionality

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