Thermal and irradiation induced interdiffusion in magnetite thin films grown on magnesium oxide (001) substrates

被引：28
|
作者：
Kim-Ngan, N. -T. H. [1 ]
Balogh, A. G. [2 ]
Meyer, J. D. [3 ]
Broetz, J. [2 ]
Zajac, M. [4 ]
Slezak, T. [4 ]
Korecki, J. [4 ,5 ]
机构：
[1] Pedag Univ, Inst Phys, PL-30084 Krakow, Poland
[2] Tech Univ Darmstadt, Inst Mat Sci, D-64287 Darmstadt, Germany
[3] Goethe Univ Frankfurt, Inst Nucl Phys, D-60438 Frankfurt, Germany
[4] AGH Univ Sci & Technol, Fac Phys & Appl Comp Sci, PL-30059 Krakow, Poland
[5] Polish Acad Sci, Inst Catalysis & Surface Chem, PL-30239 Krakow, Poland
来源：
SURFACE SCIENCE | 2009年 / 603卷 / 09期
关键词：
RBS; Channeling; MBE; CEMS; X-ray reflectometry; Magnetite Fe3O4; Ion beam modification; EPITAXIAL-FILMS;
D O I：
10.1016/j.susc.2009.02.028
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Epitaxial Fe3O4(001) thin films (with a thickness in the range of 10-20 nm) grown on MgO substrates were characterized using low-energy electron diffraction (LEED), conversion electron Mossbauer spectroscopy (CEMS) and investigated using Rutherford backscattering spectrometry (RBS), channeling (RBS-C) experiments and X-ray reflectometry (XRR). The Mg out-diffusion from the MgO substrate into the film was observed for the directly-deposited Fe3O4/MgO(001) films. For the Fe3O4/Fe/MgO(001) films, the Mg diffusion was prevented by the Fe layer and the surface layer is always a pure Fe3O4 layer. Annealing and ion beam mixing induced a very large interface zone having a spinel and/or wustite formula in the Fe3O4-on-Fe film system. (C) 2009 Elsevier B.V. All rights reserved.
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页码：1175 / 1181
页数：7
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