Active participation of “inert” YSZ substrates on interface formation in Fe3O4/YSZ heterostructures

Active participation of “inert” YSZ substrates on interface formation in Fe3O4/YSZ heterostructures

The bulk and emerging interface properties of magnetite Fe3O4/YSZ(001) heterostructures grown by pulsed laser deposition are investigated. Fe3O4 thin films (4–38 nm) grow epitaxially in (111) orientation and undergo a Verwey transition at max. TV =  117±0.6K. Surprisingly, the formation of interfaci...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Veröffentlicht in:Applied surface science advances 2021-12, Vol.6, p.100132, Article 100132
Hauptverfasser: Hamed, Mai Hussein, Mueller, David N., Müller, Martina
Format: Artikel
Sprache:eng
Schlagworte:
Fe3O4
formula omitted
HAXPES
Redox reaction
Verwey transition
YSZ
Online-Zugang:Volltext
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
Beschreibung
Zusammenfassung:The bulk and emerging interface properties of magnetite Fe3O4/YSZ(001) heterostructures grown by pulsed laser deposition are investigated. Fe3O4 thin films (4–38 nm) grow epitaxially in (111) orientation and undergo a Verwey transition at max. TV =  117±0.6K. Surprisingly, the formation of interfacial Fe2O3 phase is observed albeit the quasi-inert properties of yttrium-stabilized zirconia (YSZ). Possible mechanisms include either (i) thermodynamically induced interfacial redox reaction at the YSZ substrate surfaces or (ii) oxygen diffusion from the outside atmosphere, as YSZ is a very good oxygen ion conductor. Hence, substrate-assisted oxygen supply may enable the control of emerging interface functionalities.
ISSN:2666-5239
2666-5239
DOI:10.1016/j.apsadv.2021.100132