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

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JournalScientific Reports
DateAccepted/In press - 21 Jun 2016
DatePublished (current) - 14 Jul 2016
Number of pages7
Pages (from-to)1-7
Original languageEnglish


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 Fe 3 O 4 (111)/SrTiO 3 (111) polar interface. The interfacial structure and chemical composition are shown to be atomically sharp and of an octahedral Fe/SrO 3 nature. Band alignment across the interface pins the Fermi level in the vicinity of the conduction band of SrTiO 3 . Density functional theory calculations demonstrate very high spin-polarization of Fe 3 O 4 in the interface vicinity which suggests that this system may be an excellent candidate for spintronic applications.

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© 2016, The Author(s).



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