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Structures of grain boundaries in long‐chain te crystals observed by high‐resolution transmission electron microscopy
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Description
<jats:title>Abstract</jats:title><jats:p>Vacuum‐deposited Te crystals, composed of endless chains of the right‐handed or left‐handed spiral, have been investigated by high‐resolution electron microscopy with the aid of image simulation. A (010) grain boundary, which accompanies edge dislocations having an extra layer of the width of one Te chain, has been observed. A through‐focal series of images reveal that it is not a reflectional nor a rotational twin boundary but a small angle grain boundary in a single crystal or an inversion twin. The lattice on one side of the boundary is shifted from that on the other side by [001]<jats:italic>c</jats:italic>/3 + [120]<jats:italic>a</jats:italic>/8, and inclined at 1.1° around the <jats:italic>c</jats:italic>‐axis of the other side. Also found between crystallites of [100] and [011] orientation is a grain boundary which is built with the (011) facets on one side of the boundary and the (211) or (0,1,10) facets on another side. © 1992 Wiley‐Liss, Inc.</jats:p>
Journal
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- Microscopy Research and Technique
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Microscopy Research and Technique 23 207-218, 1992-11-01
Wiley
