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001     1026137
005     20240529111526.0
037 _ _ |a FZJ-2024-03298
100 1 _ |a Xu, Yifan
|b 0
111 2 _ |a 87th Annual Meeting of the DPG and DPG Spring Meeting 2024 of the Condensed Matter Section (SKM)
|c TU Berlin
|d 2024-03-17 - 2024-03-22
|w Germany
245 _ _ |a Tuning the magnetic properties of Fe3O4 thin films driven by electric field
260 _ _ |c 2024
336 7 _ |a Conference Paper
|0 33
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520 _ _ |a Tuning magnetic oxide phases at heterointerfaces is a compelling strategy foradvancing spintronic and memristive device applications. Specifically for ironoxides, we have shown that we can tune themagnetic and electrical properties ofthin films upon initiating a phase transition between magnetite, maghemite andwustite. Here we show the preparation and characterization of epitaxial Fe3O4thin films grown on TiO2 - terminated Nb:SrTiO3 substrates via pulsed laser deposition(PLD).We observe a change in the Verwey transition - a critical indicatorof the oxygen content in the Fe3O4 films and in particular, the disappearanceof the Verwey transition when positive electric field is applied. In addition, usingX-ray Magnetic Circular Dichroism (XMCD), we observed a shift in the FeEdge. This could be explained by oxygen diffusion through the interface leadingto a reversible phase transition fromFe3O4(magnetite) to γ-Fe2O3(maghemite).
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700 1 _ |a Schöffmann, Patrick
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700 1 _ |a Bednarski-Meinke, Connie
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700 1 _ |a Yin, Chenyang
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700 1 _ |a Petracic, Oleg
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700 1 _ |a Hussein, Mai
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