X-ray scattering from misfit dislocations in heteroepitaxial films: The case of Nb(110) on Al2O3

作者: R. I. Barabash , W. Donner , H. Dosch

DOI: 10.1063/1.1342215

关键词: OpticsEpitaxyCondensed matter physicsScatteringMomentum transferNiobiumDislocationMaterials scienceX-ray

摘要: We apply the Krivoglaz theory of x-ray scattering to thin epitaxial films containing misfit dislocations and reanalyze seemingly puzzling phenomena observed in several heteroepitaxial films. show that two-line shape distribution its dependence upon film thickness momentum transfer can be understood natural way on a quantitative level. Extended diffuse maps have been obtained from Nb(110)/Al2O3(1120) which are discussed within framework this disclose particular dislocation network at Nb–Al2O3 interface.

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