Stability and capping of magnetite ultra-thin films
File Type:
PDFItem Type:
Journal ArticleDate:
2014Access:
openAccessCitation:
K. Fleischer, O. Mauit and I. V. Shvets, Stability and capping of magnetite ultra-thin films, Applied Physics Letters, 104, 19, 2014, 192401Download Item:
ultrathin-feo-v6.pdf (Published (author's copy) - Peer Reviewed) 218.3Kb
Abstract:
Ultrathin films of Fe3O4 have been grown epitaxially on nearly lattice matched MgO(001). The stability of
4 nm thick films in ambient air and under annealing in an oxygen atmosphere at 200◦C has been studied. By
magneto optical and Raman measurements we can confirm the presence of the Fe3 O4 phase and the formation
of a maghemite top layer passivating the Fe3 O4 thin film. In a second step we are able to demonstrate that
this top layer oxidation in ambient air can be prevented by a 2 nm thick magnesium ferrite passivation layer,
while a thicker 20 nm MgO layer prevents oxidation even at elevated temperatures.
Sponsor
Grant Number
Science Foundation Ireland (SFI)
12/IA/1264
Author's Homepage:
http://people.tcd.ie/fleisckhttp://people.tcd.ie/mauito
http://people.tcd.ie/ivchvets
Description:
PUBLISHEDSponsor:
Science Foundation Ireland (SFI)Type of material:
Journal ArticleCollections:
Series/Report no:
Applied Physics Letters104
19
Availability:
Full text availableSubject:
Raman spectroscopy, magneto-optic Kerr effect, magnetite, capping, thin filmSubject (TCD):
Nanoscience & Materials , Applied physics , FILMS , Magnetism and spin electronics , Optics , Surface and interface physicsThe following license files are associated with this item: