Epitaxial gadolinium nitride thin films

GdN thin films are deposited on MgO(100) by low-energy ion-beam-assisted molecular-beam epitaxy at elevated temperatures. Elemental analysis by secondary-ion mass spectrometry proves that a protective layer is imperative to avoid oxidation of the GdN films in air. In situ surface structural investig...

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Veröffentlicht in:Applied physics letters 2007-02, Vol.90 (6), p.061919-061919-3
Hauptverfasser: Gerlach, J. W., Mennig, J., Rauschenbach, B.
Format: Artikel
Sprache:eng
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Zusammenfassung:GdN thin films are deposited on MgO(100) by low-energy ion-beam-assisted molecular-beam epitaxy at elevated temperatures. Elemental analysis by secondary-ion mass spectrometry proves that a protective layer is imperative to avoid oxidation of the GdN films in air. In situ surface structural investigation of the growing GdN films by reflection high-energy electron diffraction reveals epitaxial film growth. This result is confirmed by x-ray diffraction structure and texture analysis. Accordingly, the GdN films on MgO(100) exhibit cube-on-cube epitaxy. Due to the epitaxial growth the crystalline quality of the films is by far higher than that of films previously reported of in literature.
ISSN:0003-6951
1077-3118
DOI:10.1063/1.2472538