title: 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.
authors.affiliation: Department of Physics, University of York, Heslington, York, YO10 5DD, UK.
authors.forename: Daniel
authors.initials: D
authors.lastname: Gilks
authors.affiliation: Department of Physics, University of York, Heslington, York, YO10 5DD, UK.
authors.forename: Keith P
authors.initials: KP
authors.lastname: McKenna
authors.affiliation: Department of Physics, University of York, Heslington, York, YO10 5DD, UK.
authors.forename: Zlatko
authors.initials: Z
authors.lastname: Nedelkoski
authors.affiliation: Department of Physics, University of York, Heslington, York, YO10 5DD, UK.
authors.forename: Balati
authors.initials: B
authors.lastname: Kuerbanjiang
authors.affiliation: Secure Materials Center, Materials and Structures Laboratory, Tokyo Institute of Technology, 4259, Nagatsuta, Midori-ku, Yokohama 226-8503, Japan.
authors.forename: Kosuke
authors.initials: K
authors.lastname: Matsuzaki
authors.affiliation: Secure Materials Center, Materials and Structures Laboratory, Tokyo Institute of Technology, 4259, Nagatsuta, Midori-ku, Yokohama 226-8503, Japan.
authors.forename: Tomofumi
authors.initials: T
authors.lastname: Susaki
authors.affiliation: Department of Physics, University of York, Heslington, York, YO10 5DD, UK.
authors.forename: Leonardo
authors.initials: L
authors.lastname: Lari
authors.affiliation: SuperSTEM, STFC Daresbury Laboratories, Keckwick Lane, Warrington, WA4 4AD, UK.
authors.forename: Demie
authors.initials: D
authors.lastname: Kepaptsoglou
authors.affiliation: SuperSTEM, STFC Daresbury Laboratories, Keckwick Lane, Warrington, WA4 4AD, UK.
authors.forename: Quentin
authors.initials: Q
authors.lastname: Ramasse
authors.affiliation: Department of Physics, University of York, Heslington, York, YO10 5DD, UK.
authors.forename: Steve
authors.initials: S
authors.lastname: Tear
authors.affiliation: Department of Physics, University of York, Heslington, York, YO10 5DD, UK.
authors.forename: Vlado K
authors.initials: VK
authors.lastname: Lazarov