Direct observation of an incommensurate solid-solid interface
- 1 May 1989
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 39 (13) , 9584-9586
- https://doi.org/10.1103/physrevb.39.9584
Abstract
Atomic structure at the epitaxial Al(111)/Si(111) interface has been studied using high-resolution transmission electron microscopy. Aside from the orientational ‘‘matching,’’ the interface appeared to be incommensurate. We have interpreted the observed phenomenon within the context of the well-known Frank–van dan Merwe dislocation theory for adsorbed overlayers. The result also suggests the intriguing possibility of growing dislocation-free and strain-free thin films.Keywords
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