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Kikuchi pattern analysis of noncentrosymmetric crystals

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      Abstract

      Different models of Kikuchi pattern formation are compared with respect to their applicability to noncentrosymmetric crystals, and the breakdown of Friedel's rule in experimental electron backscatter diffraction (EBSD) patterns is discussed. Different A III B Vsemiconductor materials are used to evaluate the resulting asymmetry of Kikuchi band profiles for polar lattice planes. By comparison with the characteristic etch pit morphology on a single-crystal surface, the polar character of the measured lattice planes can be assigned absolutely. The presented approach enables point-group-resolved orientation mapping, which goes beyond the commonly applied Laue group analysis in EBSD.

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        Electron channeling patterns in the scanning electron microscope

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          Noncentrosymmetric Oxides

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            Author and article information

            Journal
            JACGAR
            Journal of Applied Crystallography
            J Appl Crystallogr
            International Union of Crystallography (IUCr)
            1600-5767
            October 2015
            August 18 2015
            : 48
            : 5
            : 1405-1419
            10.1107/S1600576715014016
            © 2015

            http://journals.iucr.org/services/copyrightpolicy.html

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