ANTISYMMETRY OF SURFACES AND INTERFACES IN POLAR MATERIALS

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Abstract
It is shown that the antisymmetry of the sphalerite structure is isomorphous to the coloured diamond group Fd'[MATH]'m if sites associated with positive and negative charge are regarded as being equivalent except for colour. This methodology enables the multiplicity and polarity of external crystal surfaces to be deduced readily. In addition this analysis is shown to be very useful for the analysis of domain boundaries, grain boundaries and epitaxial interfaces

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