Fresnel effects at grain-boundary dislocations
- 1 July 1984
- journal article
- letter
- Published by Taylor & Francis in Philosophical Magazine A
- Vol. 49 (1) , L5-L8
- https://doi.org/10.1080/01418618408233438
Abstract
It is demonstrated that intrinsic grain-boundary dislocations of spacing 12 nm exert sufficiently strong Fresnel effects to show periodic changes in contrast over a limited defocus range. The implications of this for the interpretation of high-resolution images of such defects are noted.Keywords
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