Search results for "Multiple diffraction"

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Hybrid multiple diffraction in semipolar wurtzite materials: (\bf 01\overline{1}2)-oriented ZnMgO/ZnO heterostructures as an illustration

2017

X-ray diffraction has been widely used to characterize the structural properties (strain and structural quality) of semiconductor heterostructures. This work employs hybrid multiple diffraction to analyzer-oriented Zn1−xMgxO layers grown by molecular beam epitaxy on ZnO substrates. In such a low-symmetry material system, additional features appear in symmetric reflection scans, which are described as arising from hybrid multiple diffraction. First, the Bragg conditions necessary for these high-order processes to occur are introduced and applied to explain all the observed satellite reflections, identify the planes that contribute and computea priorithe angles at which they are observed. Fur…

[PHYS]Physics [physics]010302 applied physicsDiffractionMaterials sciencebusiness.industryX-ray multiple diffractionHeterojunction02 engineering and technologyMultiple diffraction021001 nanoscience & nanotechnology01 natural sciencesGeneral Biochemistry Genetics and Molecular BiologyReciprocal latticehybrid peaksLattice (order)0103 physical sciencesOptoelectronicsA priori and a posteriori0210 nano-technologybusinessWurtzite crystal structureMolecular beam epitaxyJournal of Applied Crystallography
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Crystal growth and characterization of Zn1-xMgxO advanced micro- and nanostructures

2018

Dentro de la creciente área de investigación de la física de semiconductores, los pertenecientes a la familia II-VI se han convertido en un campo fundamental de la física de materiales debido a que sus propiedades fotofísicas son únicas para crear una nueva generación de dispositivos en el campo de la fotónica y la microelectrónica. Entre ellos, los semiconductores basados en ZnO han ganado un considerable interés en la comunidad científica en parte debido a su alta energía de enlace del excitón (60 meV) la cual es 2.4 veces más alta que la energía térmica a temperatura ambiente. Este hecho puede dar lugar a emisión laser excitónica a temperaturas incluso mayores que la ambiente. Además, gr…

distributed bragg reflectorznmgonanowiresmultilayerhybrid multiple diffractionmicrocavities
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