Home > Publications database > Tuning the magnetic and structural properties of Fe3O4 films grown on Nb:SrTiO3 substrates > print

001     907218
005     20250129094215.0
024 7 _ |a 2128/31016
|2 Handle
037 _ _ |a FZJ-2022-01899
100 1 _ |a Xu, Yifan
|0 P:(DE-Juel1)186907
|b 0
|e Corresponding author
111 2 _ |a (Digital) Institute Seminar JCNS-2 (Master Colloquium Talk)
|w Germany + online event
245 _ _ |a Tuning the magnetic and structural properties of Fe3O4 films grown on Nb:SrTiO3 substrates
|f 2022-04-14 -
260 _ _ |c 2022
336 7 _ |a Conference Paper
|0 33
|2 EndNote
336 7 _ |a Other
|2 DataCite
336 7 _ |a INPROCEEDINGS
|2 BibTeX
336 7 _ |a LECTURE_SPEECH
|2 ORCID
336 7 _ |a Talk (non-conference)
|b talk
|m talk
|0 PUB:(DE-HGF)31
|s 1649760499_18975
|2 PUB:(DE-HGF)
|x Invited
336 7 _ |a Other
|2 DINI
520 _ _ |a Tuning magnetic oxide phases via redox reactions across their heterointerfaces makesthem useful for spintronic and memristive device applications. In Mai Hussein Hamed’sprevious study, an interesting insight of tuning the Fe3O4 thin films on SrTiO3 substratesinterface via annealing was given [1]. Inspired by memristor, I further studied totun it by applying electric field. Using controlled film-substrate interfaces and a smallelectric field, it is possible that an oxidation/reduction reaction occurs which leads toa reversible phase transition in the thin film.The quality of Fe3O4 thin films is sensitive to the growth parameters. In my talk, Iwill first introduce the growth optimization of Fe3O4 thin films on Nb-STO using PLD.The characterization of Fe3O4 thin films structural and magnetic qualities is introducedin detail. Furthermore, using magnetometry, we can detect the Verwey transition whichis a strong indicator of the oxygen content in the Fe3O4 films. I will present the observationof a strong change in the Verwey transition with an applied electric field. Thiscan be explained by oxygen diffusion through the interface which leads to a reversiblephase transition from Fe3O4(magnetite) to γ-Fe2O3(maghemite). Additionally, we investigatethe structural transitions using ex-situ XRD. In the outlook, I will furtherpropose the possible in-situ measurement while applying voltage in order to study theoxygen stoichiometry, as well as the possible tuning by annealing.
536 _ _ |a 632 - Materials – Quantum, Complex and Functional Materials (POF4-632)
|0 G:(DE-HGF)POF4-632
|c POF4-632
|f POF IV
|x 0
536 _ _ |a 6G4 - Jülich Centre for Neutron Research (JCNS) (FZJ) (POF4-6G4)
|0 G:(DE-HGF)POF4-6G4
|c POF4-6G4
|f POF IV
|x 1
856 4 _ |u https://juser.fz-juelich.de/record/907218/files/Yifan_MA_Abstract.pdf
|y OpenAccess
909 C O |o oai:juser.fz-juelich.de:907218
|p openaire
|p open_access
|p VDB
|p driver
910 1 _ |a Forschungszentrum Jülich
|0 I:(DE-588b)5008462-8
|k FZJ
|b 0
|6 P:(DE-Juel1)186907
913 1 _ |a DE-HGF
|b Forschungsbereich Materie
|l From Matter to Materials and Life
|1 G:(DE-HGF)POF4-630
|0 G:(DE-HGF)POF4-632
|3 G:(DE-HGF)POF4
|2 G:(DE-HGF)POF4-600
|4 G:(DE-HGF)POF
|v Materials – Quantum, Complex and Functional Materials
|x 0
913 1 _ |a DE-HGF
|b Forschungsbereich Materie
|l Großgeräte: Materie
|1 G:(DE-HGF)POF4-6G0
|0 G:(DE-HGF)POF4-6G4
|3 G:(DE-HGF)POF4
|2 G:(DE-HGF)POF4-600
|4 G:(DE-HGF)POF
|v Jülich Centre for Neutron Research (JCNS) (FZJ)
|x 1
914 1 _ |y 2022
915 _ _ |a OpenAccess
|0 StatID:(DE-HGF)0510
|2 StatID
920 1 _ |0 I:(DE-Juel1)JCNS-2-20110106
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|l Streumethoden
|x 0
920 1 _ |0 I:(DE-Juel1)PGI-4-20110106
|k PGI-4
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|x 1
920 1 _ |0 I:(DE-82)080009_20140620
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980 1 _ |a FullTexts
980 _ _ |a talk
980 _ _ |a VDB
980 _ _ |a UNRESTRICTED
980 _ _ |a I:(DE-Juel1)JCNS-2-20110106
980 _ _ |a I:(DE-Juel1)PGI-4-20110106
980 _ _ |a I:(DE-82)080009_20140620
981 _ _ |a I:(DE-Juel1)JCNS-2-20110106

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