Determination of Crystal Symmetry - Practical Electron Microscopy and Database - - An Online Book - |
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Microanalysis | EM Book https://www.globalsino.com/EM/ | ||||||||
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In practice, it is often impossible to determine the full symmetry of a crystal with a single symmetry element. In this case, the simplist way for such determination is that we record CBED patterns along a proper zone axis and then analyze the resulting symmetries of the whole-pattern, projection-diffraction pattern, and bright-field (BF) (000) disk. In order to determine symmetry elements in crystals, some common rules in CBED can be used:
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