%0 Conference Paper
%A Tober, Steffen
%A Creutzburg, Marcus
%A Arndt, Björn
%A Chung, Simon
%A Jacobse, Leon
%A Jeromin, Arno
%A Vonk, Vedran
%A Stierle, Andreas
%T Magnetite (Fe3−𝛿O4) homoepitaxy observed by X-ray intensity growth oscillations
%M FZJ-2023-02175
%D 2023
%X Processes on the Fe3−𝛿O4 (001) surface like oxidative regrowth, (partial)lifting of the subsurface cation vacancy reconstruction and theelement-specific incorporation of adatoms demonstrate the sensitiverelation of oxygen pressure, cation transport and structure in the nearsurfaceregion of Fe3−𝛿O4 influencing the performance of catalysts anddevices [1,2,3]. We exemplarily studied the homoepitaxial growth ofFe3−𝛿O4 (001) in dependence of the O2 pressure and iron flux. Xrayintensity growth oscillations proved ordered growth of Fe3−𝛿O4for all probed conditions while atomic force microscopy revealed newlyformed micrometre-sized surface structures exceeding the amount ofdeposited material [4]. Our results indicate the presence of multipleparallel processes during reactive Fe3−𝛿O4 homoepitaxy suggestingsimilar processes to occur also in other applications of Fe3−𝛿O4.[1] Nie et al., J. Am. Chem. Soc. 135, 10091 (2013), [2] Arndt, B. etal. PCCP 22, 8336 (2020), [3] Mirabella et al., Electrochimica Acta,389, 138638 (2021), [4] van der Vegt et al., Phys. Rev. Lett. 68, 3335(1992)
%B DPG-Frühjahrstagung der Sektion Kondensierte Materie (SKM)
%C 26 Mar 2023 - 31 Mar 2023, Dresden (Germany)
Y2 26 Mar 2023 - 31 Mar 2023
M2 Dresden, Germany
%F PUB:(DE-HGF)6
%9 Conference Presentation
%U https://juser.fz-juelich.de/record/1007709