Structural investigation of the three-layer system MgO/Fe/GaAs(001) by means of photoelectron spectroscopy and diffraction

D. Handschak; T. Luehr; F. Schoenbohm; S. Doering; C. Keutner; U. Berges; C. Westphal

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Structural investigation of the three-layer system MgO/Fe/GaAs(001) by means of photoelectron spectroscopy and diffraction

机译：三层体系MgO / Fe / GaAs（001）的光电子能谱和衍射结构研究

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We report a combined high-resolution photoemission (XPS) and photoelectron diffraction (XPD) investigation of the three layer system MgO/Fe/GaAs(001). Each layer is investigated with regard to its structure. The two dimers model of the GaAs (4 × 2) reconstruction was confirmed by XPD patterns. We find the intermediate Fe layer in a crystalline structure. Further, the study clearly shows a well-ordered epitaxial MgO film on Fe. A careful analysis of the interface signals indicates an interdiffusion at the Fe/GaAs interface and partially shifted magnesium layers at the MgO/Fe interface.

机译：我们报告了三层系统MgO / Fe / GaAs（001）的组合高分辨率光电发射（XPS）和光电子衍射（XPD）研究。研究每个层的结构。通过XPD模式证实了GaAs（4×2）重建的两个二聚体模型。我们发现中间的Fe层处于晶体结构中。此外，研究清楚地显示了在Fe上排列良好的外延MgO膜。对界面信号的仔细分析表明，Fe / GaAs界面相互扩散，而MgO / Fe界面的镁层部分迁移。

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《Physical review》 |2013年第4期|045313.1-045313.9|共9页
作者
D. Handschak; T. Luehr; F. Schoenbohm; S. Doering; C. Keutner; U. Berges; C. Westphal;
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Lehrstuhl fuer Experimentelle Physik 1, Technische Universitaet Dortmund, Otto-Hahn Strasse 4, 44221 Dortmund, Germany and DELTA, Technische Universitaet Dortmund, Maria-Goeppert-Mayer Strasse 2,44221 Dortmund, Germany;

Lehrstuhl fuer Experimentelle Physik 1, Technische Universitaet Dortmund, Otto-Hahn Strasse 4, 44221 Dortmund, Germany and DELTA, Technische Universitaet Dortmund, Maria-Goeppert-Mayer Strasse 2,44221 Dortmund, Germany;

Lehrstuhl fuer Experimentelle Physik 1, Technische Universitaet Dortmund, Otto-Hahn Strasse 4, 44221 Dortmund, Germany and DELTA, Technische Universitaet Dortmund, Maria-Goeppert-Mayer Strasse 2,44221 Dortmund, Germany;

Lehrstuhl fuer Experimentelle Physik 1, Technische Universitaet Dortmund, Otto-Hahn Strasse 4, 44221 Dortmund, Germany and DELTA, Technische Universitaet Dortmund, Maria-Goeppert-Mayer Strasse 2,44221 Dortmund, Germany;

Lehrstuhl fuer Experimentelle Physik 1, Technische Universitaet Dortmund, Otto-Hahn Strasse 4, 44221 Dortmund, Germany and DELTA, Technische Universitaet Dortmund, Maria-Goeppert-Mayer Strasse 2,44221 Dortmund, Germany;

Lehrstuhl fuer Experimentelle Physik 1, Technische Universitaet Dortmund, Otto-Hahn Strasse 4, 44221 Dortmund, Germany and DELTA, Technische Universitaet Dortmund, Maria-Goeppert-Mayer Strasse 2,44221 Dortmund, Germany;

Lehrstuhl fuer Experimentelle Physik 1, Technische Universitaet Dortmund, Otto-Hahn Strasse 4, 44221 Dortmund, Germany and DELTA, Technische Universitaet Dortmund, Maria-Goeppert-Mayer Strasse 2,44221 Dortmund, Germany;

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2. Photoelectron Diffraction Investigation of Strained InGaAs Grown on (001) GaAs [J] . M. G. Proietti, S. Turchini, J. Garcia, Journal de Physique, IV: Proceedings of International Conference . 1997,第2aPta1期

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机译：三层体系MgO / Fe / GaAs（001）的光电子能谱和衍射结构研究

Structural investigation of the three-layer system MgO/Fe/GaAs(001) by means of photoelectron spectroscopy and diffraction

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