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Synthesis and characterisation of fluorinated epitaxial films of BaFeO$_{2}$F: Tailoring magnetic anisotropy: Via a lowering of tetragonal distortion

Nair, A.; Wollstadt, S.; Witte, Ralf 1; Dasgupta, S.; Kehne, P.; Alff, L.; Komissinskiy, P.; Clemens, Oliver 1
1 Institut für Nanotechnologie (INT), Karlsruher Institut für Technologie (KIT)


In this article, we report on the synthesis and characterisation of fluorinated epitaxial films of BaFeO$_{2}$F via low-temperature fluorination of thin films of BaFeO$_{2.5+d}$ grown by pulsed laser deposition. Diffraction measurements show that fluoride incorporation only results in a contraction of the film perpendicular to the film surface, where clamping by the substrate is prohibitive for strong in-plane changes. The fluorinated films were found to be homogenous regarding the fluorine content over the whole film thickness, and can be considered as single crystal equivalents to the bulk phase BaFeO$_{2}$F. Surprisingly, fluorination resulted in the change of the tetragonal distortion to a nearly cubic symmetry, which results in a lowering of anisotropic orientation of the magnetic moments of the antiferromagnetically ordered compound, confirmed by Mössbauer spectroscopy and magnetic studies.

Verlagsausgabe §
DOI: 10.5445/IR/1000104757
Veröffentlicht am 13.01.2020
DOI: 10.1039/c9ra08039b
Zitationen: 7
Web of Science
Zitationen: 6
Zitationen: 6
Cover der Publikation
Zugehörige Institution(en) am KIT Institut für Nanotechnologie (INT)
Publikationstyp Zeitschriftenaufsatz
Publikationsjahr 2019
Sprache Englisch
Identifikator ISSN: 2046-2069
KITopen-ID: 1000104757
HGF-Programm 43.22.01 (POF III, LK 01) Functionality by Design
Erschienen in RSC Advances
Verlag Royal Society of Chemistry (RSC)
Band 9
Heft 64
Seiten 37136-37143
Nachgewiesen in Web of Science
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