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.

引用

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页码：1175 / 1181

页数：7

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