TY  - CONF
AU  - Xu, Yifan
AU  - Schöffmann, Patrick
AU  - Bednarski-Meinke, Connie
AU  - Yin, Chenyang
AU  - Tober, Steffen
AU  - Qdemat, Asmaa
AU  - Petracic, Oleg
AU  - Hussein, Mai
TI  - Tuning the magnetic properties of Fe3O4 thin films driven by electric field
M1  - FZJ-2024-03298
PY  - 2024
AB  - 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).
T2  - 87th Annual Meeting of the DPG and DPG Spring Meeting 2024 of the Condensed Matter Section (SKM)
CY  - 17 Mar 2024 - 22 Mar 2024, TU Berlin (Germany)
Y2  - 17 Mar 2024 - 22 Mar 2024
M2  - TU Berlin, Germany
LB  - PUB:(DE-HGF)24
UR  - https://juser.fz-juelich.de/record/1026137
ER  -