%0 Conference Paper
%A Xu, Yifan
%A Schöffmann, Patrick
%A Bednarski-Meinke, Connie
%A Yin, Chenyang
%A Tober, Steffen
%A Qdemat, Asmaa
%A Petracic, Oleg
%A Hussein, Mai
%T Tuning the magnetic properties of Fe3O4 thin films driven by electric field
%M FZJ-2024-03298
%D 2024
%X 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).
%B 87th Annual Meeting of the DPG and DPG Spring Meeting 2024 of the Condensed Matter Section (SKM)
%C 17 Mar 2024 - 22 Mar 2024, TU Berlin (Germany)
Y2 17 Mar 2024 - 22 Mar 2024
M2 TU Berlin, Germany
%F PUB:(DE-HGF)24
%9 Poster
%U https://juser.fz-juelich.de/record/1026137