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Thermal and irradiation induced interdiffusion in Fe3O4/MgO(0 0 1) thin film

Kim-Ngan, N.-T. H. and Balogh, A. G. and Meyer, J. D. and Brötz, J. and Hummelt, Stefan and Zajac, M. and Slezak, T. and Korecki, J. (2009):
Thermal and irradiation induced interdiffusion in Fe3O4/MgO(0 0 1) thin film.
267, In: Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, (8-9), Elsevier Science Publishing Company, pp. 1484-1488, [Online-Edition: http://www.sciencedirect.com/science/article/B6TJN-4VGWM5P-G...],
[Article]

Abstract

The interface reactions in an epitaxial 10 nm-thick Fe3O4/MgO(0 0 1) film were investigated by using Rutherford Backscattering spectrometry (RBS), channeling (RBS-C) and X-ray reflectometry (XRR). The as-grown film had a good crystallinity indicated by the minimum yield and the half-angle value for Fe, respectively, [chi]min(Fe) = 22% and [psi]1/2(Fe) = 0.62°. Annealing the films under partial argon pressure up to 600 °C led to a large enhancement of Mg out-diffusion into the film forming a wustite-type phase, but the total layer thickness did not change much. Ion irradiation of the film by 1 MeV Ar ion beam caused a strong Fe ion mixing resulting in a large interfacial zone with a thickness of 23 nm.

Item Type: Article
Erschienen: 2009
Creators: Kim-Ngan, N.-T. H. and Balogh, A. G. and Meyer, J. D. and Brötz, J. and Hummelt, Stefan and Zajac, M. and Slezak, T. and Korecki, J.
Title: Thermal and irradiation induced interdiffusion in Fe3O4/MgO(0 0 1) thin film
Language: English
Abstract:

The interface reactions in an epitaxial 10 nm-thick Fe3O4/MgO(0 0 1) film were investigated by using Rutherford Backscattering spectrometry (RBS), channeling (RBS-C) and X-ray reflectometry (XRR). The as-grown film had a good crystallinity indicated by the minimum yield and the half-angle value for Fe, respectively, [chi]min(Fe) = 22% and [psi]1/2(Fe) = 0.62°. Annealing the films under partial argon pressure up to 600 °C led to a large enhancement of Mg out-diffusion into the film forming a wustite-type phase, but the total layer thickness did not change much. Ion irradiation of the film by 1 MeV Ar ion beam caused a strong Fe ion mixing resulting in a large interfacial zone with a thickness of 23 nm.

Journal or Publication Title: Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms
Volume: 267
Number: 8-9
Publisher: Elsevier Science Publishing Company
Uncontrolled Keywords: CEMS, Channeling, Magnetite Fe3O4, MBE, RBS, XRR
Divisions: 11 Department of Materials and Earth Sciences > Material Science > Material Analytics
11 Department of Materials and Earth Sciences > Material Science > Structure Research
11 Department of Materials and Earth Sciences > Material Science
11 Department of Materials and Earth Sciences
Date Deposited: 15 Jul 2009 12:48
Official URL: http://www.sciencedirect.com/science/article/B6TJN-4VGWM5P-G...
Additional Information:

Proceedings of the 16th International Conference on Ion Beam Modification of Materials

Funders: The financial support from the International Bureau of BMBF (project MOE 07/R61 between Germany and Poland) is highly acknowledged., A.G.B. gratefully acknowledges the financial support by German Research Foundation (DFG) within the frame of the Center of Excellence SFB-595 project., N.-T.H. Kim-Ngan appreciates the financial support by the Ministry of Science and Higher Education through the statutory funds for the Faculty of Mathematics, Physics and Techniques, Pedagogical University, Kraków.
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