Clemens, Oliver ; Kruk, Robert ; Patterson, Eric A. ; Loho, Christoph ; Reitz, Christian ; Wright, Adrian J. ; Knight, Kevin S. ; Hahn, Horst ; Slater, Peter R. (2014)
Introducing a Large Polar Tetragonal Distortion into Ba-Doped BiFeO3by Low-Temperature Fluorination.
In: Inorganic Chemistry, 53 (23)
doi: 10.1021/ic502183t
Artikel, Bibliographie
Kurzbeschreibung (Abstract)
This article reports on the synthesis and crystallographic and magnetic structure of barium-doped BiFeO3 compounds with approximate composition Bi(1-x)BaxFeO(3-x/2), as well as those of the fluorinated compounds Bi(1-x)BaxFeO(3-x)F(x) (both with x = 0.2, 0.3), prepared by low-temperature fluorination of the oxide precursors using polyvinylidenedifluoride. Whereas the oxide compounds were obtained as cubic (x = 0.2) and slightly tetragonal (x = 0.3, c/a approximate to 1.003) distorted perovskite compounds, a large tetragonal polar distortion was observed for the oxyfluoride compounds (c/a approximate to 1.08 for x = 0.2 and similar to 1.05 for x = 0.3), being isostructural to tetragonal PbTiO3. Although described differently in previous reports on Ba-doped BiFeO3, the observed remanent magnetization is found to agree well with the amount of BaFe12O19 only detectable by neutron diffraction and the well-known magnetic properties of BaFe12O19. The oxyfluoride compounds show G-type antiferromagnetic ordering with magnetic moments lying in the a/b plane.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2014 |
| Autor(en): | Clemens, Oliver ; Kruk, Robert ; Patterson, Eric A. ; Loho, Christoph ; Reitz, Christian ; Wright, Adrian J. ; Knight, Kevin S. ; Hahn, Horst ; Slater, Peter R. |
| Art des Eintrags: | Bibliographie |
| Titel: | Introducing a Large Polar Tetragonal Distortion into Ba-Doped BiFeO3by Low-Temperature Fluorination |
| Sprache: | Englisch |
| Publikationsjahr: | 1 Dezember 2014 |
| Verlag: | ACS Publications |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | Inorganic Chemistry |
| Jahrgang/Volume einer Zeitschrift: | 53 |
| (Heft-)Nummer: | 23 |
| DOI: | 10.1021/ic502183t |
| Kurzbeschreibung (Abstract): | This article reports on the synthesis and crystallographic and magnetic structure of barium-doped BiFeO3 compounds with approximate composition Bi(1-x)BaxFeO(3-x/2), as well as those of the fluorinated compounds Bi(1-x)BaxFeO(3-x)F(x) (both with x = 0.2, 0.3), prepared by low-temperature fluorination of the oxide precursors using polyvinylidenedifluoride. Whereas the oxide compounds were obtained as cubic (x = 0.2) and slightly tetragonal (x = 0.3, c/a approximate to 1.003) distorted perovskite compounds, a large tetragonal polar distortion was observed for the oxyfluoride compounds (c/a approximate to 1.08 for x = 0.2 and similar to 1.05 for x = 0.3), being isostructural to tetragonal PbTiO3. Although described differently in previous reports on Ba-doped BiFeO3, the observed remanent magnetization is found to agree well with the amount of BaFe12O19 only detectable by neutron diffraction and the well-known magnetic properties of BaFe12O19. The oxyfluoride compounds show G-type antiferromagnetic ordering with magnetic moments lying in the a/b plane. |
| Fachbereich(e)/-gebiet(e): | 11 Fachbereich Material- und Geowissenschaften 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft > Fachgebiet Materialdesign durch Synthese 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft > Gemeinschaftslabor Nanomaterialien 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft > Fachgebiet Nichtmetallisch-Anorganische Werkstoffe |
| Hinterlegungsdatum: | 16 Feb 2015 13:14 |
| Letzte Änderung: | 12 Apr 2017 12:24 |
| PPN: | |
| Sponsoren: | H.H. appreciates the support of the State of Hesse by an equipment grant. |
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