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Local structures of free-standing AlₓGa₁ˍₓN thin films studied by extended x-ray absorption fine structure

Yu, Kin Man; Shan, W.; Glover, C. J.; Ridgway, M. C.; Wong, William S.; Yang, W.


Local structural information for the first two atomic shells surrounding Ga atoms in free standing AlₓGa₁ˍₓN alloy films has been obtained by extended x-ray absorption fine structure spectroscopy. For an AlN mole fraction ranging from 0 to 0.6, we found that the first shell Ga–N bond length had only a weak composition dependence, roughly one quarter of that predicted by Vegard’s Law. In the second shell, the Ga–Ga bond length was significantly longer than that of Ga–Al (Δ∼0.04–0.065 Å). A...[Show more]

CollectionsANU Research Publications
Date published: 1999-12-27
Type: Journal article
Source: Applied Physics Letters
DOI: 10.1063/1.125548


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