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000859569 037__ $$aFZJ-2019-00421
000859569 041__ $$aEnglish
000859569 1001_ $$0P:(DE-HGF)0$$aLott, Dieter$$b0$$eCorresponding author
000859569 1112_ $$aGerman Conference for Research with Synchrotron Radiation, Neutrons and Ion Beams at Large Facilities$$cGarching$$d2019-09-17 - 2019-09-19$$gSNI2018$$wGermany
000859569 245__ $$aDiffusion of iron in the near-surface region of magnetite (001)
000859569 260__ $$c2018
000859569 3367_ $$033$$2EndNote$$aConference Paper
000859569 3367_ $$2DataCite$$aOther
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000859569 3367_ $$0PUB:(DE-HGF)6$$2PUB:(DE-HGF)$$aConference Presentation$$bconf$$mconf$$s1547736584_16920$$xAfter Call
000859569 520__ $$aThe mobility of Fe in magnetite is a key ingredient towards a better understanding of its defect structure and resulting properties. For nanoparticles, which find a range of applications in medicine, spintronics, material science and catalysis, the near-surface is particularly important. Recent scanning tunnelling microscopy (STM) and low energy electron dif- fraction (LEED) studies of the ( √2× √2)R45° reconstructed (001) surface suggested a subsurface vacancy stabilisation model for this surface, later proved by surface x-ray diffraction (SXRD) [1,2]. Low energy electron microscopy (LEEM) experiments under catalytic conditions showed a regrowth process of Fe3O4-layers on (001) surfaces [3]. These results point towards an interesting interplay between cation vacancy formation and diffusion. We present the results of iron exchange at the interface between 57Fe3O4 thin-films and a Fe3O4 (001) substrate after ultra high vacuum annealing at multiple temperatures. By exploiting the scattering length variation of 57Fe and natural Fe, its interdiffusion across the film-substrate interface is characterized by neutron reflectometry at MARIA at MLZ [4]. The results on growth and diffusion are complemented by x-ray reflectometry data.[1] Bliem, R. et al. Science. 346, 1215 (2014)[2] Arndt, B. et al. Surf. Sci. 653, 76 (2016)[3] Nie, S. et al., J. Am. Chem. Soc. 135, 10091 (2013) [4] Schmidt, H. et al. Adv. Eng. Mat. 11, 446 (2009)
000859569 536__ $$0G:(DE-HGF)POF3-6G15$$a6G15 - FRM II / MLZ (POF3-6G15)$$cPOF3-6G15$$fPOF III$$x0
000859569 536__ $$0G:(DE-HGF)POF3-6G4$$a6G4 - Jülich Centre for Neutron Research (JCNS) (POF3-623)$$cPOF3-623$$fPOF III$$x1
000859569 65027 $$0V:(DE-MLZ)SciArea-170$$2V:(DE-HGF)$$aMagnetism$$x0
000859569 65017 $$0V:(DE-MLZ)GC-1604-2016$$2V:(DE-HGF)$$aMagnetic Materials$$x0
000859569 693__ $$0EXP:(DE-MLZ)MBE-MLZ-20151210$$5EXP:(DE-MLZ)MBE-MLZ-20151210$$eMBE-MLZ: Molecular Beam Epitaxy at MLZ$$x0
000859569 693__ $$0EXP:(DE-MLZ)MARIA-20140101$$1EXP:(DE-MLZ)FRMII-20140101$$5EXP:(DE-MLZ)MARIA-20140101$$6EXP:(DE-MLZ)NL5N-20140101$$aForschungs-Neutronenquelle Heinz Maier-Leibnitz $$eMARIA: Magnetic reflectometer with high incident angle$$fNL5N$$x1
000859569 7001_ $$0P:(DE-HGF)0$$aVonk, Vedran$$b1
000859569 7001_ $$0P:(DE-HGF)0$$aCreutzburg, Marcus$$b2
000859569 7001_ $$0P:(DE-Juel1)159309$$aSyed Mohd, Amir$$b3$$ufzj
000859569 7001_ $$0P:(DE-Juel1)142052$$aPütter, Sabine$$b4$$ufzj
000859569 7001_ $$0P:(DE-Juel1)158075$$aKoutsioumpas, Alexandros$$b5$$ufzj
000859569 7001_ $$0P:(DE-Juel1)130821$$aMattauch, Stefan$$b6$$ufzj
000859569 7001_ $$0P:(DE-HGF)0$$aStierle, Andreas$$b7
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000859569 9101_ $$0I:(DE-588b)5008462-8$$6P:(DE-Juel1)159309$$aForschungszentrum Jülich$$b3$$kFZJ
000859569 9101_ $$0I:(DE-588b)5008462-8$$6P:(DE-Juel1)142052$$aForschungszentrum Jülich$$b4$$kFZJ
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000859569 9101_ $$0I:(DE-588b)5008462-8$$6P:(DE-Juel1)130821$$aForschungszentrum Jülich$$b6$$kFZJ
000859569 9131_ $$0G:(DE-HGF)POF3-6G15$$1G:(DE-HGF)POF3-6G0$$2G:(DE-HGF)POF3-600$$3G:(DE-HGF)POF3$$4G:(DE-HGF)POF$$9G:(DE-HGF)POF3-6G15$$aDE-HGF$$bForschungsbereich Materie$$lGroßgeräte: Materie$$vFRM II / MLZ$$x0
000859569 9131_ $$0G:(DE-HGF)POF3-623$$1G:(DE-HGF)POF3-620$$2G:(DE-HGF)POF3-600$$3G:(DE-HGF)POF3$$4G:(DE-HGF)POF$$9G:(DE-HGF)POF3-6G4$$aDE-HGF$$bForschungsbereich Materie$$lVon Materie zu Materialien und Leben$$vFacility topic: Neutrons for Research on Condensed Matter$$x1
000859569 9141_ $$y2018
000859569 920__ $$lyes
000859569 9201_ $$0I:(DE-Juel1)JCNS-FRM-II-20110218$$kJCNS-FRM-II$$lJCNS-FRM-II$$x0
000859569 9201_ $$0I:(DE-Juel1)JCNS-2-20110106$$kJCNS-2$$lStreumethoden$$x1
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000859569 980__ $$aUNRESTRICTED