RECENTLY we have obtained transmission patterns from graphite powders in which prominent extra rings appear ; owing to insufficient resolution these have hitherto escaped notice. Two of these rings ...
Electron diffraction is a powerful analytical technique used to study the atomic structure of materials. It involves the interaction of a beam of electrons with a crystalline sample, resulting in a ...
SO-CALLED extra or forbidden rings have been observed from time to time in electron diffraction patterns, and their origin has been attributed to half-order diffractions or impurities. Cases in which ...
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