TY  - CONF
AU  - Tober, Steffen
AU  - Creutzburg, Marcus
AU  - Arndt, Björn
AU  - Chung, Simon
AU  - Jacobse, Leon
AU  - Jeromin, Arno
AU  - Vonk, Vedran
AU  - Stierle, Andreas
TI  - Magnetite (Fe3−𝛿O4) homoepitaxy observed by X-ray intensity growth oscillations
M1  - FZJ-2023-02175
PY  - 2023
AB  - 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)
T2  - DPG-Frühjahrstagung der Sektion Kondensierte Materie (SKM)
CY  - 26 Mar 2023 - 31 Mar 2023, Dresden (Germany)
Y2  - 26 Mar 2023 - 31 Mar 2023
M2  - Dresden, Germany
LB  - PUB:(DE-HGF)6
UR  - https://juser.fz-juelich.de/record/1007709
ER  -