Abstract:This work describes growth of the first thin ( 1 pm) epitaxial films of pure bismuth-antimony alloys using molecular beam epitaxy techniques. These structures were grown at elevated temperatures on single-crystal barium fluoride substrates of (111) orientation. Electron microscope observations show the films to be featureless and defect-free on the scale of 0.1 pm. The films grow with their trigonal axis parallel to the (11 1) axis of the substrate, and Laue-backscattering pictures show that they are epitaxial… Show more
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